1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #include "i40e.h" 5 #include "i40e_lan_hmc.h" 6 #include "i40e_virtchnl_pf.h" 7 8 /*********************notification routines***********************/ 9 10 /** 11 * i40e_vc_vf_broadcast 12 * @pf: pointer to the PF structure 13 * @v_opcode: operation code 14 * @v_retval: return value 15 * @msg: pointer to the msg buffer 16 * @msglen: msg length 17 * 18 * send a message to all VFs on a given PF 19 **/ 20 static void i40e_vc_vf_broadcast(struct i40e_pf *pf, 21 enum virtchnl_ops v_opcode, 22 int v_retval, u8 *msg, 23 u16 msglen) 24 { 25 struct i40e_hw *hw = &pf->hw; 26 struct i40e_vf *vf = pf->vf; 27 int i; 28 29 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { 30 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 31 /* Not all vfs are enabled so skip the ones that are not */ 32 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 33 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 34 continue; 35 36 /* Ignore return value on purpose - a given VF may fail, but 37 * we need to keep going and send to all of them 38 */ 39 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 40 msg, msglen, NULL); 41 } 42 } 43 44 /** 45 * i40e_vc_link_speed2mbps 46 * converts i40e_aq_link_speed to integer value of Mbps 47 * @link_speed: the speed to convert 48 * 49 * return the speed as direct value of Mbps. 50 **/ 51 static u32 52 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed) 53 { 54 switch (link_speed) { 55 case I40E_LINK_SPEED_100MB: 56 return SPEED_100; 57 case I40E_LINK_SPEED_1GB: 58 return SPEED_1000; 59 case I40E_LINK_SPEED_2_5GB: 60 return SPEED_2500; 61 case I40E_LINK_SPEED_5GB: 62 return SPEED_5000; 63 case I40E_LINK_SPEED_10GB: 64 return SPEED_10000; 65 case I40E_LINK_SPEED_20GB: 66 return SPEED_20000; 67 case I40E_LINK_SPEED_25GB: 68 return SPEED_25000; 69 case I40E_LINK_SPEED_40GB: 70 return SPEED_40000; 71 case I40E_LINK_SPEED_UNKNOWN: 72 return SPEED_UNKNOWN; 73 } 74 return SPEED_UNKNOWN; 75 } 76 77 /** 78 * i40e_set_vf_link_state 79 * @vf: pointer to the VF structure 80 * @pfe: pointer to PF event structure 81 * @ls: pointer to link status structure 82 * 83 * set a link state on a single vf 84 **/ 85 static void i40e_set_vf_link_state(struct i40e_vf *vf, 86 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls) 87 { 88 u8 link_status = ls->link_info & I40E_AQ_LINK_UP; 89 90 if (vf->link_forced) 91 link_status = vf->link_up; 92 93 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { 94 pfe->event_data.link_event_adv.link_speed = link_status ? 95 i40e_vc_link_speed2mbps(ls->link_speed) : 0; 96 pfe->event_data.link_event_adv.link_status = link_status; 97 } else { 98 pfe->event_data.link_event.link_speed = link_status ? 99 i40e_virtchnl_link_speed(ls->link_speed) : 0; 100 pfe->event_data.link_event.link_status = link_status; 101 } 102 } 103 104 /** 105 * i40e_vc_notify_vf_link_state 106 * @vf: pointer to the VF structure 107 * 108 * send a link status message to a single VF 109 **/ 110 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 111 { 112 struct virtchnl_pf_event pfe; 113 struct i40e_pf *pf = vf->pf; 114 struct i40e_hw *hw = &pf->hw; 115 struct i40e_link_status *ls = &pf->hw.phy.link_info; 116 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 117 118 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 119 pfe.severity = PF_EVENT_SEVERITY_INFO; 120 121 i40e_set_vf_link_state(vf, &pfe, ls); 122 123 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 124 0, (u8 *)&pfe, sizeof(pfe), NULL); 125 } 126 127 /** 128 * i40e_vc_notify_link_state 129 * @pf: pointer to the PF structure 130 * 131 * send a link status message to all VFs on a given PF 132 **/ 133 void i40e_vc_notify_link_state(struct i40e_pf *pf) 134 { 135 int i; 136 137 for (i = 0; i < pf->num_alloc_vfs; i++) 138 i40e_vc_notify_vf_link_state(&pf->vf[i]); 139 } 140 141 /** 142 * i40e_vc_notify_reset 143 * @pf: pointer to the PF structure 144 * 145 * indicate a pending reset to all VFs on a given PF 146 **/ 147 void i40e_vc_notify_reset(struct i40e_pf *pf) 148 { 149 struct virtchnl_pf_event pfe; 150 151 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 152 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 153 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, 154 (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); 155 } 156 157 #ifdef CONFIG_PCI_IOV 158 void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev) 159 { 160 u16 vf_id; 161 u16 pos; 162 163 /* Continue only if this is a PF */ 164 if (!pdev->is_physfn) 165 return; 166 167 if (!pci_num_vf(pdev)) 168 return; 169 170 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 171 if (pos) { 172 struct pci_dev *vf_dev = NULL; 173 174 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id); 175 while ((vf_dev = pci_get_device(pdev->vendor, vf_id, vf_dev))) { 176 if (vf_dev->is_virtfn && vf_dev->physfn == pdev) 177 pci_restore_msi_state(vf_dev); 178 } 179 } 180 } 181 #endif /* CONFIG_PCI_IOV */ 182 183 /** 184 * i40e_vc_notify_vf_reset 185 * @vf: pointer to the VF structure 186 * 187 * indicate a pending reset to the given VF 188 **/ 189 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 190 { 191 struct virtchnl_pf_event pfe; 192 int abs_vf_id; 193 194 /* validate the request */ 195 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 196 return; 197 198 /* verify if the VF is in either init or active before proceeding */ 199 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 200 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 201 return; 202 203 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 204 205 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 206 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 207 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, 208 0, (u8 *)&pfe, 209 sizeof(struct virtchnl_pf_event), NULL); 210 } 211 /***********************misc routines*****************************/ 212 213 /** 214 * i40e_vc_reset_vf 215 * @vf: pointer to the VF info 216 * @notify_vf: notify vf about reset or not 217 * Reset VF handler. 218 **/ 219 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf) 220 { 221 struct i40e_pf *pf = vf->pf; 222 int i; 223 224 if (notify_vf) 225 i40e_vc_notify_vf_reset(vf); 226 227 /* We want to ensure that an actual reset occurs initiated after this 228 * function was called. However, we do not want to wait forever, so 229 * we'll give a reasonable time and print a message if we failed to 230 * ensure a reset. 231 */ 232 for (i = 0; i < 20; i++) { 233 /* If PF is in VFs releasing state reset VF is impossible, 234 * so leave it. 235 */ 236 if (test_bit(__I40E_VFS_RELEASING, pf->state)) 237 return; 238 if (i40e_reset_vf(vf, false)) 239 return; 240 usleep_range(10000, 20000); 241 } 242 243 if (notify_vf) 244 dev_warn(&vf->pf->pdev->dev, 245 "Failed to initiate reset for VF %d after 200 milliseconds\n", 246 vf->vf_id); 247 else 248 dev_dbg(&vf->pf->pdev->dev, 249 "Failed to initiate reset for VF %d after 200 milliseconds\n", 250 vf->vf_id); 251 } 252 253 /** 254 * i40e_vc_isvalid_vsi_id 255 * @vf: pointer to the VF info 256 * @vsi_id: VF relative VSI id 257 * 258 * check for the valid VSI id 259 **/ 260 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 261 { 262 struct i40e_pf *pf = vf->pf; 263 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 264 265 return (vsi && (vsi->vf_id == vf->vf_id)); 266 } 267 268 /** 269 * i40e_vc_isvalid_queue_id 270 * @vf: pointer to the VF info 271 * @vsi_id: vsi id 272 * @qid: vsi relative queue id 273 * 274 * check for the valid queue id 275 **/ 276 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 277 u16 qid) 278 { 279 struct i40e_pf *pf = vf->pf; 280 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 281 282 return (vsi && (qid < vsi->alloc_queue_pairs)); 283 } 284 285 /** 286 * i40e_vc_isvalid_vector_id 287 * @vf: pointer to the VF info 288 * @vector_id: VF relative vector id 289 * 290 * check for the valid vector id 291 **/ 292 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) 293 { 294 struct i40e_pf *pf = vf->pf; 295 296 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 297 } 298 299 /***********************vf resource mgmt routines*****************/ 300 301 /** 302 * i40e_vc_get_pf_queue_id 303 * @vf: pointer to the VF info 304 * @vsi_id: id of VSI as provided by the FW 305 * @vsi_queue_id: vsi relative queue id 306 * 307 * return PF relative queue id 308 **/ 309 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 310 u8 vsi_queue_id) 311 { 312 struct i40e_pf *pf = vf->pf; 313 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 314 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 315 316 if (!vsi) 317 return pf_queue_id; 318 319 if (le16_to_cpu(vsi->info.mapping_flags) & 320 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 321 pf_queue_id = 322 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 323 else 324 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 325 vsi_queue_id; 326 327 return pf_queue_id; 328 } 329 330 /** 331 * i40e_get_real_pf_qid 332 * @vf: pointer to the VF info 333 * @vsi_id: vsi id 334 * @queue_id: queue number 335 * 336 * wrapper function to get pf_queue_id handling ADq code as well 337 **/ 338 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) 339 { 340 int i; 341 342 if (vf->adq_enabled) { 343 /* Although VF considers all the queues(can be 1 to 16) as its 344 * own but they may actually belong to different VSIs(up to 4). 345 * We need to find which queues belongs to which VSI. 346 */ 347 for (i = 0; i < vf->num_tc; i++) { 348 if (queue_id < vf->ch[i].num_qps) { 349 vsi_id = vf->ch[i].vsi_id; 350 break; 351 } 352 /* find right queue id which is relative to a 353 * given VSI. 354 */ 355 queue_id -= vf->ch[i].num_qps; 356 } 357 } 358 359 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); 360 } 361 362 /** 363 * i40e_config_irq_link_list 364 * @vf: pointer to the VF info 365 * @vsi_id: id of VSI as given by the FW 366 * @vecmap: irq map info 367 * 368 * configure irq link list from the map 369 **/ 370 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 371 struct virtchnl_vector_map *vecmap) 372 { 373 unsigned long linklistmap = 0, tempmap; 374 struct i40e_pf *pf = vf->pf; 375 struct i40e_hw *hw = &pf->hw; 376 u16 vsi_queue_id, pf_queue_id; 377 enum i40e_queue_type qtype; 378 u16 next_q, vector_id, size; 379 u32 reg, reg_idx; 380 u16 itr_idx = 0; 381 382 vector_id = vecmap->vector_id; 383 /* setup the head */ 384 if (0 == vector_id) 385 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 386 else 387 reg_idx = I40E_VPINT_LNKLSTN( 388 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 389 (vector_id - 1)); 390 391 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 392 /* Special case - No queues mapped on this vector */ 393 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 394 goto irq_list_done; 395 } 396 tempmap = vecmap->rxq_map; 397 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 398 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 399 vsi_queue_id)); 400 } 401 402 tempmap = vecmap->txq_map; 403 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 404 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 405 vsi_queue_id + 1)); 406 } 407 408 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; 409 next_q = find_first_bit(&linklistmap, size); 410 if (unlikely(next_q == size)) 411 goto irq_list_done; 412 413 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 414 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 415 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); 416 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 417 418 wr32(hw, reg_idx, reg); 419 420 while (next_q < size) { 421 switch (qtype) { 422 case I40E_QUEUE_TYPE_RX: 423 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 424 itr_idx = vecmap->rxitr_idx; 425 break; 426 case I40E_QUEUE_TYPE_TX: 427 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 428 itr_idx = vecmap->txitr_idx; 429 break; 430 default: 431 break; 432 } 433 434 next_q = find_next_bit(&linklistmap, size, next_q + 1); 435 if (next_q < size) { 436 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 437 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 438 pf_queue_id = i40e_get_real_pf_qid(vf, 439 vsi_id, 440 vsi_queue_id); 441 } else { 442 pf_queue_id = I40E_QUEUE_END_OF_LIST; 443 qtype = 0; 444 } 445 446 /* format for the RQCTL & TQCTL regs is same */ 447 reg = (vector_id) | 448 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 449 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 450 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 451 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 452 wr32(hw, reg_idx, reg); 453 } 454 455 /* if the vf is running in polling mode and using interrupt zero, 456 * need to disable auto-mask on enabling zero interrupt for VFs. 457 */ 458 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 459 (vector_id == 0)) { 460 reg = rd32(hw, I40E_GLINT_CTL); 461 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 462 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 463 wr32(hw, I40E_GLINT_CTL, reg); 464 } 465 } 466 467 irq_list_done: 468 i40e_flush(hw); 469 } 470 471 /** 472 * i40e_release_rdma_qvlist 473 * @vf: pointer to the VF. 474 * 475 **/ 476 static void i40e_release_rdma_qvlist(struct i40e_vf *vf) 477 { 478 struct i40e_pf *pf = vf->pf; 479 struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info; 480 u32 msix_vf; 481 u32 i; 482 483 if (!vf->qvlist_info) 484 return; 485 486 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 487 for (i = 0; i < qvlist_info->num_vectors; i++) { 488 struct virtchnl_rdma_qv_info *qv_info; 489 u32 next_q_index, next_q_type; 490 struct i40e_hw *hw = &pf->hw; 491 u32 v_idx, reg_idx, reg; 492 493 qv_info = &qvlist_info->qv_info[i]; 494 if (!qv_info) 495 continue; 496 v_idx = qv_info->v_idx; 497 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 498 /* Figure out the queue after CEQ and make that the 499 * first queue. 500 */ 501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 502 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 503 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 504 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 505 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 506 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 507 508 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 509 reg = (next_q_index & 510 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 511 (next_q_type << 512 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 513 514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 515 } 516 } 517 kfree(vf->qvlist_info); 518 vf->qvlist_info = NULL; 519 } 520 521 /** 522 * i40e_config_rdma_qvlist 523 * @vf: pointer to the VF info 524 * @qvlist_info: queue and vector list 525 * 526 * Return 0 on success or < 0 on error 527 **/ 528 static int 529 i40e_config_rdma_qvlist(struct i40e_vf *vf, 530 struct virtchnl_rdma_qvlist_info *qvlist_info) 531 { 532 struct i40e_pf *pf = vf->pf; 533 struct i40e_hw *hw = &pf->hw; 534 struct virtchnl_rdma_qv_info *qv_info; 535 u32 v_idx, i, reg_idx, reg; 536 u32 next_q_idx, next_q_type; 537 size_t size; 538 u32 msix_vf; 539 int ret = 0; 540 541 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 542 543 if (qvlist_info->num_vectors > msix_vf) { 544 dev_warn(&pf->pdev->dev, 545 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 546 qvlist_info->num_vectors, 547 msix_vf); 548 ret = -EINVAL; 549 goto err_out; 550 } 551 552 kfree(vf->qvlist_info); 553 size = virtchnl_struct_size(vf->qvlist_info, qv_info, 554 qvlist_info->num_vectors); 555 vf->qvlist_info = kzalloc(size, GFP_KERNEL); 556 if (!vf->qvlist_info) { 557 ret = -ENOMEM; 558 goto err_out; 559 } 560 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 561 562 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 563 for (i = 0; i < qvlist_info->num_vectors; i++) { 564 qv_info = &qvlist_info->qv_info[i]; 565 if (!qv_info) 566 continue; 567 568 /* Validate vector id belongs to this vf */ 569 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 570 ret = -EINVAL; 571 goto err_free; 572 } 573 574 v_idx = qv_info->v_idx; 575 576 vf->qvlist_info->qv_info[i] = *qv_info; 577 578 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 579 /* We might be sharing the interrupt, so get the first queue 580 * index and type, push it down the list by adding the new 581 * queue on top. Also link it with the new queue in CEQCTL. 582 */ 583 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 584 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 585 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 586 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 587 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 588 589 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 590 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 591 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 592 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 593 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 594 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 595 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 596 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 597 598 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 599 reg = (qv_info->ceq_idx & 600 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 601 (I40E_QUEUE_TYPE_PE_CEQ << 602 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 603 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 604 } 605 606 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 607 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 608 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 609 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 610 611 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 612 } 613 } 614 615 return 0; 616 err_free: 617 kfree(vf->qvlist_info); 618 vf->qvlist_info = NULL; 619 err_out: 620 return ret; 621 } 622 623 /** 624 * i40e_config_vsi_tx_queue 625 * @vf: pointer to the VF info 626 * @vsi_id: id of VSI as provided by the FW 627 * @vsi_queue_id: vsi relative queue index 628 * @info: config. info 629 * 630 * configure tx queue 631 **/ 632 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 633 u16 vsi_queue_id, 634 struct virtchnl_txq_info *info) 635 { 636 struct i40e_pf *pf = vf->pf; 637 struct i40e_hw *hw = &pf->hw; 638 struct i40e_hmc_obj_txq tx_ctx; 639 struct i40e_vsi *vsi; 640 u16 pf_queue_id; 641 u32 qtx_ctl; 642 int ret = 0; 643 644 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 645 ret = -ENOENT; 646 goto error_context; 647 } 648 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 649 vsi = i40e_find_vsi_from_id(pf, vsi_id); 650 if (!vsi) { 651 ret = -ENOENT; 652 goto error_context; 653 } 654 655 /* clear the context structure first */ 656 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 657 658 /* only set the required fields */ 659 tx_ctx.base = info->dma_ring_addr / 128; 660 tx_ctx.qlen = info->ring_len; 661 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 662 tx_ctx.rdylist_act = 0; 663 tx_ctx.head_wb_ena = info->headwb_enabled; 664 tx_ctx.head_wb_addr = info->dma_headwb_addr; 665 666 /* clear the context in the HMC */ 667 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 668 if (ret) { 669 dev_err(&pf->pdev->dev, 670 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 671 pf_queue_id, ret); 672 ret = -ENOENT; 673 goto error_context; 674 } 675 676 /* set the context in the HMC */ 677 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 678 if (ret) { 679 dev_err(&pf->pdev->dev, 680 "Failed to set VF LAN Tx queue context %d error: %d\n", 681 pf_queue_id, ret); 682 ret = -ENOENT; 683 goto error_context; 684 } 685 686 /* associate this queue with the PCI VF function */ 687 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 688 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 689 & I40E_QTX_CTL_PF_INDX_MASK); 690 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 691 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 692 & I40E_QTX_CTL_VFVM_INDX_MASK); 693 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 694 i40e_flush(hw); 695 696 error_context: 697 return ret; 698 } 699 700 /** 701 * i40e_config_vsi_rx_queue 702 * @vf: pointer to the VF info 703 * @vsi_id: id of VSI as provided by the FW 704 * @vsi_queue_id: vsi relative queue index 705 * @info: config. info 706 * 707 * configure rx queue 708 **/ 709 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 710 u16 vsi_queue_id, 711 struct virtchnl_rxq_info *info) 712 { 713 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 714 struct i40e_pf *pf = vf->pf; 715 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 716 struct i40e_hw *hw = &pf->hw; 717 struct i40e_hmc_obj_rxq rx_ctx; 718 int ret = 0; 719 720 /* clear the context structure first */ 721 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 722 723 /* only set the required fields */ 724 rx_ctx.base = info->dma_ring_addr / 128; 725 rx_ctx.qlen = info->ring_len; 726 727 if (info->splithdr_enabled) { 728 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 729 I40E_RX_SPLIT_IP | 730 I40E_RX_SPLIT_TCP_UDP | 731 I40E_RX_SPLIT_SCTP; 732 /* header length validation */ 733 if (info->hdr_size > ((2 * 1024) - 64)) { 734 ret = -EINVAL; 735 goto error_param; 736 } 737 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 738 739 /* set split mode 10b */ 740 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 741 } 742 743 /* databuffer length validation */ 744 if (info->databuffer_size > ((16 * 1024) - 128)) { 745 ret = -EINVAL; 746 goto error_param; 747 } 748 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 749 750 /* max pkt. length validation */ 751 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 752 ret = -EINVAL; 753 goto error_param; 754 } 755 rx_ctx.rxmax = info->max_pkt_size; 756 757 /* if port VLAN is configured increase the max packet size */ 758 if (vsi->info.pvid) 759 rx_ctx.rxmax += VLAN_HLEN; 760 761 /* enable 32bytes desc always */ 762 rx_ctx.dsize = 1; 763 764 /* default values */ 765 rx_ctx.lrxqthresh = 1; 766 rx_ctx.crcstrip = 1; 767 rx_ctx.prefena = 1; 768 rx_ctx.l2tsel = 1; 769 770 /* clear the context in the HMC */ 771 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 772 if (ret) { 773 dev_err(&pf->pdev->dev, 774 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 775 pf_queue_id, ret); 776 ret = -ENOENT; 777 goto error_param; 778 } 779 780 /* set the context in the HMC */ 781 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 782 if (ret) { 783 dev_err(&pf->pdev->dev, 784 "Failed to set VF LAN Rx queue context %d error: %d\n", 785 pf_queue_id, ret); 786 ret = -ENOENT; 787 goto error_param; 788 } 789 790 error_param: 791 return ret; 792 } 793 794 /** 795 * i40e_alloc_vsi_res 796 * @vf: pointer to the VF info 797 * @idx: VSI index, applies only for ADq mode, zero otherwise 798 * 799 * alloc VF vsi context & resources 800 **/ 801 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 802 { 803 struct i40e_mac_filter *f = NULL; 804 struct i40e_pf *pf = vf->pf; 805 struct i40e_vsi *vsi; 806 u64 max_tx_rate = 0; 807 int ret = 0; 808 809 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 810 vf->vf_id); 811 812 if (!vsi) { 813 dev_err(&pf->pdev->dev, 814 "add vsi failed for VF %d, aq_err %d\n", 815 vf->vf_id, pf->hw.aq.asq_last_status); 816 ret = -ENOENT; 817 goto error_alloc_vsi_res; 818 } 819 820 if (!idx) { 821 u64 hena = i40e_pf_get_default_rss_hena(pf); 822 u8 broadcast[ETH_ALEN]; 823 824 vf->lan_vsi_idx = vsi->idx; 825 vf->lan_vsi_id = vsi->id; 826 /* If the port VLAN has been configured and then the 827 * VF driver was removed then the VSI port VLAN 828 * configuration was destroyed. Check if there is 829 * a port VLAN and restore the VSI configuration if 830 * needed. 831 */ 832 if (vf->port_vlan_id) 833 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 834 835 spin_lock_bh(&vsi->mac_filter_hash_lock); 836 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 837 f = i40e_add_mac_filter(vsi, 838 vf->default_lan_addr.addr); 839 if (!f) 840 dev_info(&pf->pdev->dev, 841 "Could not add MAC filter %pM for VF %d\n", 842 vf->default_lan_addr.addr, vf->vf_id); 843 } 844 eth_broadcast_addr(broadcast); 845 f = i40e_add_mac_filter(vsi, broadcast); 846 if (!f) 847 dev_info(&pf->pdev->dev, 848 "Could not allocate VF broadcast filter\n"); 849 spin_unlock_bh(&vsi->mac_filter_hash_lock); 850 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 851 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 852 /* program mac filter only for VF VSI */ 853 ret = i40e_sync_vsi_filters(vsi); 854 if (ret) 855 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 856 } 857 858 /* storing VSI index and id for ADq and don't apply the mac filter */ 859 if (vf->adq_enabled) { 860 vf->ch[idx].vsi_idx = vsi->idx; 861 vf->ch[idx].vsi_id = vsi->id; 862 } 863 864 /* Set VF bandwidth if specified */ 865 if (vf->tx_rate) { 866 max_tx_rate = vf->tx_rate; 867 } else if (vf->ch[idx].max_tx_rate) { 868 max_tx_rate = vf->ch[idx].max_tx_rate; 869 } 870 871 if (max_tx_rate) { 872 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 873 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 874 max_tx_rate, 0, NULL); 875 if (ret) 876 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 877 vf->vf_id, ret); 878 } 879 880 error_alloc_vsi_res: 881 return ret; 882 } 883 884 /** 885 * i40e_map_pf_queues_to_vsi 886 * @vf: pointer to the VF info 887 * 888 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 889 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 890 **/ 891 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 892 { 893 struct i40e_pf *pf = vf->pf; 894 struct i40e_hw *hw = &pf->hw; 895 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 896 u16 vsi_id, qps; 897 int i, j; 898 899 if (vf->adq_enabled) 900 num_tc = vf->num_tc; 901 902 for (i = 0; i < num_tc; i++) { 903 if (vf->adq_enabled) { 904 qps = vf->ch[i].num_qps; 905 vsi_id = vf->ch[i].vsi_id; 906 } else { 907 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 908 vsi_id = vf->lan_vsi_id; 909 } 910 911 for (j = 0; j < 7; j++) { 912 if (j * 2 >= qps) { 913 /* end of list */ 914 reg = 0x07FF07FF; 915 } else { 916 u16 qid = i40e_vc_get_pf_queue_id(vf, 917 vsi_id, 918 j * 2); 919 reg = qid; 920 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 921 (j * 2) + 1); 922 reg |= qid << 16; 923 } 924 i40e_write_rx_ctl(hw, 925 I40E_VSILAN_QTABLE(j, vsi_id), 926 reg); 927 } 928 } 929 } 930 931 /** 932 * i40e_map_pf_to_vf_queues 933 * @vf: pointer to the VF info 934 * 935 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 936 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 937 **/ 938 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 939 { 940 struct i40e_pf *pf = vf->pf; 941 struct i40e_hw *hw = &pf->hw; 942 u32 reg, total_qps = 0; 943 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 944 u16 vsi_id, qid; 945 int i, j; 946 947 if (vf->adq_enabled) 948 num_tc = vf->num_tc; 949 950 for (i = 0; i < num_tc; i++) { 951 if (vf->adq_enabled) { 952 qps = vf->ch[i].num_qps; 953 vsi_id = vf->ch[i].vsi_id; 954 } else { 955 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 956 vsi_id = vf->lan_vsi_id; 957 } 958 959 for (j = 0; j < qps; j++) { 960 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 961 962 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 963 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 964 reg); 965 total_qps++; 966 } 967 } 968 } 969 970 /** 971 * i40e_enable_vf_mappings 972 * @vf: pointer to the VF info 973 * 974 * enable VF mappings 975 **/ 976 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 977 { 978 struct i40e_pf *pf = vf->pf; 979 struct i40e_hw *hw = &pf->hw; 980 u32 reg; 981 982 /* Tell the hardware we're using noncontiguous mapping. HW requires 983 * that VF queues be mapped using this method, even when they are 984 * contiguous in real life 985 */ 986 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 987 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 988 989 /* enable VF vplan_qtable mappings */ 990 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 991 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 992 993 i40e_map_pf_to_vf_queues(vf); 994 i40e_map_pf_queues_to_vsi(vf); 995 996 i40e_flush(hw); 997 } 998 999 /** 1000 * i40e_disable_vf_mappings 1001 * @vf: pointer to the VF info 1002 * 1003 * disable VF mappings 1004 **/ 1005 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 1006 { 1007 struct i40e_pf *pf = vf->pf; 1008 struct i40e_hw *hw = &pf->hw; 1009 int i; 1010 1011 /* disable qp mappings */ 1012 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 1013 for (i = 0; i < I40E_MAX_VSI_QP; i++) 1014 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 1015 I40E_QUEUE_END_OF_LIST); 1016 i40e_flush(hw); 1017 } 1018 1019 /** 1020 * i40e_free_vf_res 1021 * @vf: pointer to the VF info 1022 * 1023 * free VF resources 1024 **/ 1025 static void i40e_free_vf_res(struct i40e_vf *vf) 1026 { 1027 struct i40e_pf *pf = vf->pf; 1028 struct i40e_hw *hw = &pf->hw; 1029 u32 reg_idx, reg; 1030 int i, j, msix_vf; 1031 1032 /* Start by disabling VF's configuration API to prevent the OS from 1033 * accessing the VF's VSI after it's freed / invalidated. 1034 */ 1035 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1036 1037 /* It's possible the VF had requeuested more queues than the default so 1038 * do the accounting here when we're about to free them. 1039 */ 1040 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1041 pf->queues_left += vf->num_queue_pairs - 1042 I40E_DEFAULT_QUEUES_PER_VF; 1043 } 1044 1045 /* free vsi & disconnect it from the parent uplink */ 1046 if (vf->lan_vsi_idx) { 1047 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1048 vf->lan_vsi_idx = 0; 1049 vf->lan_vsi_id = 0; 1050 } 1051 1052 /* do the accounting and remove additional ADq VSI's */ 1053 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1054 for (j = 0; j < vf->num_tc; j++) { 1055 /* At this point VSI0 is already released so don't 1056 * release it again and only clear their values in 1057 * structure variables 1058 */ 1059 if (j) 1060 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1061 vf->ch[j].vsi_idx = 0; 1062 vf->ch[j].vsi_id = 0; 1063 } 1064 } 1065 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1066 1067 /* disable interrupts so the VF starts in a known state */ 1068 for (i = 0; i < msix_vf; i++) { 1069 /* format is same for both registers */ 1070 if (0 == i) 1071 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1072 else 1073 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1074 (vf->vf_id)) 1075 + (i - 1)); 1076 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1077 i40e_flush(hw); 1078 } 1079 1080 /* clear the irq settings */ 1081 for (i = 0; i < msix_vf; i++) { 1082 /* format is same for both registers */ 1083 if (0 == i) 1084 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1085 else 1086 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1087 (vf->vf_id)) 1088 + (i - 1)); 1089 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1090 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1091 wr32(hw, reg_idx, reg); 1092 i40e_flush(hw); 1093 } 1094 /* reset some of the state variables keeping track of the resources */ 1095 vf->num_queue_pairs = 0; 1096 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1097 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1098 } 1099 1100 /** 1101 * i40e_alloc_vf_res 1102 * @vf: pointer to the VF info 1103 * 1104 * allocate VF resources 1105 **/ 1106 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1107 { 1108 struct i40e_pf *pf = vf->pf; 1109 int total_queue_pairs = 0; 1110 int ret, idx; 1111 1112 if (vf->num_req_queues && 1113 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1114 pf->num_vf_qps = vf->num_req_queues; 1115 else 1116 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1117 1118 /* allocate hw vsi context & associated resources */ 1119 ret = i40e_alloc_vsi_res(vf, 0); 1120 if (ret) 1121 goto error_alloc; 1122 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1123 1124 /* allocate additional VSIs based on tc information for ADq */ 1125 if (vf->adq_enabled) { 1126 if (pf->queues_left >= 1127 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1128 /* TC 0 always belongs to VF VSI */ 1129 for (idx = 1; idx < vf->num_tc; idx++) { 1130 ret = i40e_alloc_vsi_res(vf, idx); 1131 if (ret) 1132 goto error_alloc; 1133 } 1134 /* send correct number of queues */ 1135 total_queue_pairs = I40E_MAX_VF_QUEUES; 1136 } else { 1137 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1138 vf->vf_id); 1139 vf->adq_enabled = false; 1140 } 1141 } 1142 1143 /* We account for each VF to get a default number of queue pairs. If 1144 * the VF has now requested more, we need to account for that to make 1145 * certain we never request more queues than we actually have left in 1146 * HW. 1147 */ 1148 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1149 pf->queues_left -= 1150 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1151 1152 if (vf->trusted) 1153 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1154 else 1155 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1156 1157 /* store the total qps number for the runtime 1158 * VF req validation 1159 */ 1160 vf->num_queue_pairs = total_queue_pairs; 1161 1162 /* VF is now completely initialized */ 1163 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1164 1165 error_alloc: 1166 if (ret) 1167 i40e_free_vf_res(vf); 1168 1169 return ret; 1170 } 1171 1172 #define VF_DEVICE_STATUS 0xAA 1173 #define VF_TRANS_PENDING_MASK 0x20 1174 /** 1175 * i40e_quiesce_vf_pci 1176 * @vf: pointer to the VF structure 1177 * 1178 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1179 * if the transactions never clear. 1180 **/ 1181 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1182 { 1183 struct i40e_pf *pf = vf->pf; 1184 struct i40e_hw *hw = &pf->hw; 1185 int vf_abs_id, i; 1186 u32 reg; 1187 1188 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1189 1190 wr32(hw, I40E_PF_PCI_CIAA, 1191 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1192 for (i = 0; i < 100; i++) { 1193 reg = rd32(hw, I40E_PF_PCI_CIAD); 1194 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1195 return 0; 1196 udelay(1); 1197 } 1198 return -EIO; 1199 } 1200 1201 /** 1202 * __i40e_getnum_vf_vsi_vlan_filters 1203 * @vsi: pointer to the vsi 1204 * 1205 * called to get the number of VLANs offloaded on this VF 1206 **/ 1207 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1208 { 1209 struct i40e_mac_filter *f; 1210 u16 num_vlans = 0, bkt; 1211 1212 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1213 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1214 num_vlans++; 1215 } 1216 1217 return num_vlans; 1218 } 1219 1220 /** 1221 * i40e_getnum_vf_vsi_vlan_filters 1222 * @vsi: pointer to the vsi 1223 * 1224 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1225 **/ 1226 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1227 { 1228 int num_vlans; 1229 1230 spin_lock_bh(&vsi->mac_filter_hash_lock); 1231 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1232 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1233 1234 return num_vlans; 1235 } 1236 1237 /** 1238 * i40e_get_vlan_list_sync 1239 * @vsi: pointer to the VSI 1240 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1241 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1242 * This array is allocated here, but has to be freed in caller. 1243 * 1244 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1245 **/ 1246 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1247 s16 **vlan_list) 1248 { 1249 struct i40e_mac_filter *f; 1250 int i = 0; 1251 int bkt; 1252 1253 spin_lock_bh(&vsi->mac_filter_hash_lock); 1254 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1255 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1256 if (!(*vlan_list)) 1257 goto err; 1258 1259 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1260 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1261 continue; 1262 (*vlan_list)[i++] = f->vlan; 1263 } 1264 err: 1265 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1266 } 1267 1268 /** 1269 * i40e_set_vsi_promisc 1270 * @vf: pointer to the VF struct 1271 * @seid: VSI number 1272 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1273 * for a given VLAN 1274 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1275 * for a given VLAN 1276 * @vl: List of VLANs - apply filter for given VLANs 1277 * @num_vlans: Number of elements in @vl 1278 **/ 1279 static int 1280 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1281 bool unicast_enable, s16 *vl, u16 num_vlans) 1282 { 1283 struct i40e_pf *pf = vf->pf; 1284 struct i40e_hw *hw = &pf->hw; 1285 int aq_ret, aq_tmp = 0; 1286 int i; 1287 1288 /* No VLAN to set promisc on, set on VSI */ 1289 if (!num_vlans || !vl) { 1290 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1291 multi_enable, 1292 NULL); 1293 if (aq_ret) { 1294 int aq_err = pf->hw.aq.asq_last_status; 1295 1296 dev_err(&pf->pdev->dev, 1297 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1298 vf->vf_id, 1299 ERR_PTR(aq_ret), 1300 i40e_aq_str(&pf->hw, aq_err)); 1301 1302 return aq_ret; 1303 } 1304 1305 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1306 unicast_enable, 1307 NULL, true); 1308 1309 if (aq_ret) { 1310 int aq_err = pf->hw.aq.asq_last_status; 1311 1312 dev_err(&pf->pdev->dev, 1313 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1314 vf->vf_id, 1315 ERR_PTR(aq_ret), 1316 i40e_aq_str(&pf->hw, aq_err)); 1317 } 1318 1319 return aq_ret; 1320 } 1321 1322 for (i = 0; i < num_vlans; i++) { 1323 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1324 multi_enable, 1325 vl[i], NULL); 1326 if (aq_ret) { 1327 int aq_err = pf->hw.aq.asq_last_status; 1328 1329 dev_err(&pf->pdev->dev, 1330 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1331 vf->vf_id, 1332 ERR_PTR(aq_ret), 1333 i40e_aq_str(&pf->hw, aq_err)); 1334 1335 if (!aq_tmp) 1336 aq_tmp = aq_ret; 1337 } 1338 1339 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1340 unicast_enable, 1341 vl[i], NULL); 1342 if (aq_ret) { 1343 int aq_err = pf->hw.aq.asq_last_status; 1344 1345 dev_err(&pf->pdev->dev, 1346 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1347 vf->vf_id, 1348 ERR_PTR(aq_ret), 1349 i40e_aq_str(&pf->hw, aq_err)); 1350 1351 if (!aq_tmp) 1352 aq_tmp = aq_ret; 1353 } 1354 } 1355 1356 if (aq_tmp) 1357 aq_ret = aq_tmp; 1358 1359 return aq_ret; 1360 } 1361 1362 /** 1363 * i40e_config_vf_promiscuous_mode 1364 * @vf: pointer to the VF info 1365 * @vsi_id: VSI id 1366 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1367 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1368 * 1369 * Called from the VF to configure the promiscuous mode of 1370 * VF vsis and from the VF reset path to reset promiscuous mode. 1371 **/ 1372 static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1373 u16 vsi_id, 1374 bool allmulti, 1375 bool alluni) 1376 { 1377 struct i40e_pf *pf = vf->pf; 1378 struct i40e_vsi *vsi; 1379 int aq_ret = 0; 1380 u16 num_vlans; 1381 s16 *vl; 1382 1383 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1384 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1385 return -EINVAL; 1386 1387 if (vf->port_vlan_id) { 1388 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1389 alluni, &vf->port_vlan_id, 1); 1390 return aq_ret; 1391 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1392 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1393 1394 if (!vl) 1395 return -ENOMEM; 1396 1397 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1398 vl, num_vlans); 1399 kfree(vl); 1400 return aq_ret; 1401 } 1402 1403 /* no VLANs to set on, set on VSI */ 1404 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1405 NULL, 0); 1406 return aq_ret; 1407 } 1408 1409 /** 1410 * i40e_sync_vfr_reset 1411 * @hw: pointer to hw struct 1412 * @vf_id: VF identifier 1413 * 1414 * Before trigger hardware reset, we need to know if no other process has 1415 * reserved the hardware for any reset operations. This check is done by 1416 * examining the status of the RSTAT1 register used to signal the reset. 1417 **/ 1418 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1419 { 1420 u32 reg; 1421 int i; 1422 1423 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1424 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1425 I40E_VFINT_ICR0_ADMINQ_MASK; 1426 if (reg) 1427 return 0; 1428 1429 usleep_range(100, 200); 1430 } 1431 1432 return -EAGAIN; 1433 } 1434 1435 /** 1436 * i40e_trigger_vf_reset 1437 * @vf: pointer to the VF structure 1438 * @flr: VFLR was issued or not 1439 * 1440 * Trigger hardware to start a reset for a particular VF. Expects the caller 1441 * to wait the proper amount of time to allow hardware to reset the VF before 1442 * it cleans up and restores VF functionality. 1443 **/ 1444 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1445 { 1446 struct i40e_pf *pf = vf->pf; 1447 struct i40e_hw *hw = &pf->hw; 1448 u32 reg, reg_idx, bit_idx; 1449 bool vf_active; 1450 u32 radq; 1451 1452 /* warn the VF */ 1453 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1454 1455 /* Disable VF's configuration API during reset. The flag is re-enabled 1456 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1457 * It's normally disabled in i40e_free_vf_res(), but it's safer 1458 * to do it earlier to give some time to finish to any VF config 1459 * functions that may still be running at this point. 1460 */ 1461 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1462 1463 /* In the case of a VFLR, the HW has already reset the VF and we 1464 * just need to clean up, so don't hit the VFRTRIG register. 1465 */ 1466 if (!flr) { 1467 /* Sync VFR reset before trigger next one */ 1468 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1469 I40E_VFINT_ICR0_ADMINQ_MASK; 1470 if (vf_active && !radq) 1471 /* waiting for finish reset by virtual driver */ 1472 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1473 dev_info(&pf->pdev->dev, 1474 "Reset VF %d never finished\n", 1475 vf->vf_id); 1476 1477 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1478 * in progress state in rstat1 register. 1479 */ 1480 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1481 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1482 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1483 i40e_flush(hw); 1484 } 1485 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1486 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1487 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1488 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1489 i40e_flush(hw); 1490 1491 if (i40e_quiesce_vf_pci(vf)) 1492 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1493 vf->vf_id); 1494 } 1495 1496 /** 1497 * i40e_cleanup_reset_vf 1498 * @vf: pointer to the VF structure 1499 * 1500 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1501 * have verified whether the reset is finished properly, and ensure the 1502 * minimum amount of wait time has passed. 1503 **/ 1504 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1505 { 1506 struct i40e_pf *pf = vf->pf; 1507 struct i40e_hw *hw = &pf->hw; 1508 u32 reg; 1509 1510 /* disable promisc modes in case they were enabled */ 1511 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1512 1513 /* free VF resources to begin resetting the VSI state */ 1514 i40e_free_vf_res(vf); 1515 1516 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1517 * By doing this we allow HW to access VF memory at any point. If we 1518 * did it any sooner, HW could access memory while it was being freed 1519 * in i40e_free_vf_res(), causing an IOMMU fault. 1520 * 1521 * On the other hand, this needs to be done ASAP, because the VF driver 1522 * is waiting for this to happen and may report a timeout. It's 1523 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1524 * it. 1525 */ 1526 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1527 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1528 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1529 1530 /* reallocate VF resources to finish resetting the VSI state */ 1531 if (!i40e_alloc_vf_res(vf)) { 1532 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1533 i40e_enable_vf_mappings(vf); 1534 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1535 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1536 /* Do not notify the client during VF init */ 1537 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1538 &vf->vf_states)) 1539 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1540 vf->num_vlan = 0; 1541 } 1542 1543 /* Tell the VF driver the reset is done. This needs to be done only 1544 * after VF has been fully initialized, because the VF driver may 1545 * request resources immediately after setting this flag. 1546 */ 1547 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1548 } 1549 1550 /** 1551 * i40e_reset_vf 1552 * @vf: pointer to the VF structure 1553 * @flr: VFLR was issued or not 1554 * 1555 * Returns true if the VF is in reset, resets successfully, or resets 1556 * are disabled and false otherwise. 1557 **/ 1558 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1559 { 1560 struct i40e_pf *pf = vf->pf; 1561 struct i40e_hw *hw = &pf->hw; 1562 bool rsd = false; 1563 u32 reg; 1564 int i; 1565 1566 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1567 return true; 1568 1569 /* Bail out if VFs are disabled. */ 1570 if (test_bit(__I40E_VF_DISABLE, pf->state)) 1571 return true; 1572 1573 /* If VF is being reset already we don't need to continue. */ 1574 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1575 return true; 1576 1577 i40e_trigger_vf_reset(vf, flr); 1578 1579 /* poll VPGEN_VFRSTAT reg to make sure 1580 * that reset is complete 1581 */ 1582 for (i = 0; i < 10; i++) { 1583 /* VF reset requires driver to first reset the VF and then 1584 * poll the status register to make sure that the reset 1585 * completed successfully. Due to internal HW FIFO flushes, 1586 * we must wait 10ms before the register will be valid. 1587 */ 1588 usleep_range(10000, 20000); 1589 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1590 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1591 rsd = true; 1592 break; 1593 } 1594 } 1595 1596 if (flr) 1597 usleep_range(10000, 20000); 1598 1599 if (!rsd) 1600 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1601 vf->vf_id); 1602 usleep_range(10000, 20000); 1603 1604 /* On initial reset, we don't have any queues to disable */ 1605 if (vf->lan_vsi_idx != 0) 1606 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1607 1608 i40e_cleanup_reset_vf(vf); 1609 1610 i40e_flush(hw); 1611 usleep_range(20000, 40000); 1612 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states); 1613 1614 return true; 1615 } 1616 1617 /** 1618 * i40e_reset_all_vfs 1619 * @pf: pointer to the PF structure 1620 * @flr: VFLR was issued or not 1621 * 1622 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1623 * VF, then do all the waiting in one chunk, and finally finish restoring each 1624 * VF after the wait. This is useful during PF routines which need to reset 1625 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1626 * 1627 * Returns true if any VFs were reset, and false otherwise. 1628 **/ 1629 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1630 { 1631 struct i40e_hw *hw = &pf->hw; 1632 struct i40e_vf *vf; 1633 u32 reg; 1634 int i; 1635 1636 /* If we don't have any VFs, then there is nothing to reset */ 1637 if (!pf->num_alloc_vfs) 1638 return false; 1639 1640 /* If VFs have been disabled, there is no need to reset */ 1641 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1642 return false; 1643 1644 /* Begin reset on all VFs at once */ 1645 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { 1646 /* If VF is being reset no need to trigger reset again */ 1647 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1648 i40e_trigger_vf_reset(vf, flr); 1649 } 1650 1651 /* HW requires some time to make sure it can flush the FIFO for a VF 1652 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1653 * sequence to make sure that it has completed. We'll keep track of 1654 * the VFs using a simple iterator that increments once that VF has 1655 * finished resetting. 1656 */ 1657 for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) { 1658 usleep_range(10000, 20000); 1659 1660 /* Check each VF in sequence, beginning with the VF to fail 1661 * the previous check. 1662 */ 1663 while (vf < &pf->vf[pf->num_alloc_vfs]) { 1664 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) { 1665 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1666 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1667 break; 1668 } 1669 1670 /* If the current VF has finished resetting, move on 1671 * to the next VF in sequence. 1672 */ 1673 ++vf; 1674 } 1675 } 1676 1677 if (flr) 1678 usleep_range(10000, 20000); 1679 1680 /* Display a warning if at least one VF didn't manage to reset in 1681 * time, but continue on with the operation. 1682 */ 1683 if (vf < &pf->vf[pf->num_alloc_vfs]) 1684 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1685 vf->vf_id); 1686 usleep_range(10000, 20000); 1687 1688 /* Begin disabling all the rings associated with VFs, but do not wait 1689 * between each VF. 1690 */ 1691 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { 1692 /* On initial reset, we don't have any queues to disable */ 1693 if (vf->lan_vsi_idx == 0) 1694 continue; 1695 1696 /* If VF is reset in another thread just continue */ 1697 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1698 continue; 1699 1700 i40e_vsi_stop_rings_no_wait(pf->vsi[vf->lan_vsi_idx]); 1701 } 1702 1703 /* Now that we've notified HW to disable all of the VF rings, wait 1704 * until they finish. 1705 */ 1706 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { 1707 /* On initial reset, we don't have any queues to disable */ 1708 if (vf->lan_vsi_idx == 0) 1709 continue; 1710 1711 /* If VF is reset in another thread just continue */ 1712 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1713 continue; 1714 1715 i40e_vsi_wait_queues_disabled(pf->vsi[vf->lan_vsi_idx]); 1716 } 1717 1718 /* Hw may need up to 50ms to finish disabling the RX queues. We 1719 * minimize the wait by delaying only once for all VFs. 1720 */ 1721 mdelay(50); 1722 1723 /* Finish the reset on each VF */ 1724 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { 1725 /* If VF is reset in another thread just continue */ 1726 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1727 continue; 1728 1729 i40e_cleanup_reset_vf(vf); 1730 } 1731 1732 i40e_flush(hw); 1733 usleep_range(20000, 40000); 1734 clear_bit(__I40E_VF_DISABLE, pf->state); 1735 1736 return true; 1737 } 1738 1739 /** 1740 * i40e_free_vfs 1741 * @pf: pointer to the PF structure 1742 * 1743 * free VF resources 1744 **/ 1745 void i40e_free_vfs(struct i40e_pf *pf) 1746 { 1747 struct i40e_hw *hw = &pf->hw; 1748 u32 reg_idx, bit_idx; 1749 int i, tmp, vf_id; 1750 1751 if (!pf->vf) 1752 return; 1753 1754 set_bit(__I40E_VFS_RELEASING, pf->state); 1755 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1756 usleep_range(1000, 2000); 1757 1758 i40e_notify_client_of_vf_enable(pf, 0); 1759 1760 /* Disable IOV before freeing resources. This lets any VF drivers 1761 * running in the host get themselves cleaned up before we yank 1762 * the carpet out from underneath their feet. 1763 */ 1764 if (!pci_vfs_assigned(pf->pdev)) 1765 pci_disable_sriov(pf->pdev); 1766 else 1767 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1768 1769 /* Amortize wait time by stopping all VFs at the same time */ 1770 for (i = 0; i < pf->num_alloc_vfs; i++) { 1771 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1772 continue; 1773 1774 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1775 } 1776 1777 for (i = 0; i < pf->num_alloc_vfs; i++) { 1778 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1779 continue; 1780 1781 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1782 } 1783 1784 /* free up VF resources */ 1785 tmp = pf->num_alloc_vfs; 1786 pf->num_alloc_vfs = 0; 1787 for (i = 0; i < tmp; i++) { 1788 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1789 i40e_free_vf_res(&pf->vf[i]); 1790 /* disable qp mappings */ 1791 i40e_disable_vf_mappings(&pf->vf[i]); 1792 } 1793 1794 kfree(pf->vf); 1795 pf->vf = NULL; 1796 1797 /* This check is for when the driver is unloaded while VFs are 1798 * assigned. Setting the number of VFs to 0 through sysfs is caught 1799 * before this function ever gets called. 1800 */ 1801 if (!pci_vfs_assigned(pf->pdev)) { 1802 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1803 * work correctly when SR-IOV gets re-enabled. 1804 */ 1805 for (vf_id = 0; vf_id < tmp; vf_id++) { 1806 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1807 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1808 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1809 } 1810 } 1811 clear_bit(__I40E_VF_DISABLE, pf->state); 1812 clear_bit(__I40E_VFS_RELEASING, pf->state); 1813 } 1814 1815 #ifdef CONFIG_PCI_IOV 1816 /** 1817 * i40e_alloc_vfs 1818 * @pf: pointer to the PF structure 1819 * @num_alloc_vfs: number of VFs to allocate 1820 * 1821 * allocate VF resources 1822 **/ 1823 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1824 { 1825 struct i40e_vf *vfs; 1826 int i, ret = 0; 1827 1828 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1829 i40e_irq_dynamic_disable_icr0(pf); 1830 1831 /* Check to see if we're just allocating resources for extant VFs */ 1832 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1833 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1834 if (ret) { 1835 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1836 pf->num_alloc_vfs = 0; 1837 goto err_iov; 1838 } 1839 } 1840 /* allocate memory */ 1841 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1842 if (!vfs) { 1843 ret = -ENOMEM; 1844 goto err_alloc; 1845 } 1846 pf->vf = vfs; 1847 1848 /* apply default profile */ 1849 for (i = 0; i < num_alloc_vfs; i++) { 1850 vfs[i].pf = pf; 1851 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1852 vfs[i].vf_id = i; 1853 1854 /* assign default capabilities */ 1855 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1856 vfs[i].spoofchk = true; 1857 1858 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1859 1860 } 1861 pf->num_alloc_vfs = num_alloc_vfs; 1862 1863 /* VF resources get allocated during reset */ 1864 i40e_reset_all_vfs(pf, false); 1865 1866 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1867 1868 err_alloc: 1869 if (ret) 1870 i40e_free_vfs(pf); 1871 err_iov: 1872 /* Re-enable interrupt 0. */ 1873 i40e_irq_dynamic_enable_icr0(pf); 1874 return ret; 1875 } 1876 1877 #endif 1878 /** 1879 * i40e_pci_sriov_enable 1880 * @pdev: pointer to a pci_dev structure 1881 * @num_vfs: number of VFs to allocate 1882 * 1883 * Enable or change the number of VFs 1884 **/ 1885 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1886 { 1887 #ifdef CONFIG_PCI_IOV 1888 struct i40e_pf *pf = pci_get_drvdata(pdev); 1889 int pre_existing_vfs = pci_num_vf(pdev); 1890 int err = 0; 1891 1892 if (test_bit(__I40E_TESTING, pf->state)) { 1893 dev_warn(&pdev->dev, 1894 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1895 err = -EPERM; 1896 goto err_out; 1897 } 1898 1899 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1900 i40e_free_vfs(pf); 1901 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1902 goto out; 1903 1904 if (num_vfs > pf->num_req_vfs) { 1905 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1906 num_vfs, pf->num_req_vfs); 1907 err = -EPERM; 1908 goto err_out; 1909 } 1910 1911 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1912 err = i40e_alloc_vfs(pf, num_vfs); 1913 if (err) { 1914 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1915 goto err_out; 1916 } 1917 1918 out: 1919 return num_vfs; 1920 1921 err_out: 1922 return err; 1923 #endif 1924 return 0; 1925 } 1926 1927 /** 1928 * i40e_pci_sriov_configure 1929 * @pdev: pointer to a pci_dev structure 1930 * @num_vfs: number of VFs to allocate 1931 * 1932 * Enable or change the number of VFs. Called when the user updates the number 1933 * of VFs in sysfs. 1934 **/ 1935 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1936 { 1937 struct i40e_pf *pf = pci_get_drvdata(pdev); 1938 int ret = 0; 1939 1940 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1941 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1942 return -EAGAIN; 1943 } 1944 1945 if (num_vfs) { 1946 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1947 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1948 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1949 } 1950 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1951 goto sriov_configure_out; 1952 } 1953 1954 if (!pci_vfs_assigned(pf->pdev)) { 1955 i40e_free_vfs(pf); 1956 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1957 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1958 } else { 1959 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1960 ret = -EINVAL; 1961 goto sriov_configure_out; 1962 } 1963 sriov_configure_out: 1964 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1965 return ret; 1966 } 1967 1968 /***********************virtual channel routines******************/ 1969 1970 /** 1971 * i40e_vc_send_msg_to_vf 1972 * @vf: pointer to the VF info 1973 * @v_opcode: virtual channel opcode 1974 * @v_retval: virtual channel return value 1975 * @msg: pointer to the msg buffer 1976 * @msglen: msg length 1977 * 1978 * send msg to VF 1979 **/ 1980 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1981 u32 v_retval, u8 *msg, u16 msglen) 1982 { 1983 struct i40e_pf *pf; 1984 struct i40e_hw *hw; 1985 int abs_vf_id; 1986 int aq_ret; 1987 1988 /* validate the request */ 1989 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1990 return -EINVAL; 1991 1992 pf = vf->pf; 1993 hw = &pf->hw; 1994 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1995 1996 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1997 msg, msglen, NULL); 1998 if (aq_ret) { 1999 dev_info(&pf->pdev->dev, 2000 "Unable to send the message to VF %d aq_err %d\n", 2001 vf->vf_id, pf->hw.aq.asq_last_status); 2002 return -EIO; 2003 } 2004 2005 return 0; 2006 } 2007 2008 /** 2009 * i40e_vc_send_resp_to_vf 2010 * @vf: pointer to the VF info 2011 * @opcode: operation code 2012 * @retval: return value 2013 * 2014 * send resp msg to VF 2015 **/ 2016 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 2017 enum virtchnl_ops opcode, 2018 int retval) 2019 { 2020 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 2021 } 2022 2023 /** 2024 * i40e_sync_vf_state 2025 * @vf: pointer to the VF info 2026 * @state: VF state 2027 * 2028 * Called from a VF message to synchronize the service with a potential 2029 * VF reset state 2030 **/ 2031 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2032 { 2033 int i; 2034 2035 /* When handling some messages, it needs VF state to be set. 2036 * It is possible that this flag is cleared during VF reset, 2037 * so there is a need to wait until the end of the reset to 2038 * handle the request message correctly. 2039 */ 2040 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2041 if (test_bit(state, &vf->vf_states)) 2042 return true; 2043 usleep_range(10000, 20000); 2044 } 2045 2046 return test_bit(state, &vf->vf_states); 2047 } 2048 2049 /** 2050 * i40e_vc_get_version_msg 2051 * @vf: pointer to the VF info 2052 * @msg: pointer to the msg buffer 2053 * 2054 * called from the VF to request the API version used by the PF 2055 **/ 2056 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2057 { 2058 struct virtchnl_version_info info = { 2059 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2060 }; 2061 2062 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2063 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2064 if (VF_IS_V10(&vf->vf_ver)) 2065 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2066 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2067 0, (u8 *)&info, 2068 sizeof(struct virtchnl_version_info)); 2069 } 2070 2071 /** 2072 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2073 * @vf: pointer to VF structure 2074 **/ 2075 static void i40e_del_qch(struct i40e_vf *vf) 2076 { 2077 struct i40e_pf *pf = vf->pf; 2078 int i; 2079 2080 /* first element in the array belongs to primary VF VSI and we shouldn't 2081 * delete it. We should however delete the rest of the VSIs created 2082 */ 2083 for (i = 1; i < vf->num_tc; i++) { 2084 if (vf->ch[i].vsi_idx) { 2085 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2086 vf->ch[i].vsi_idx = 0; 2087 vf->ch[i].vsi_id = 0; 2088 } 2089 } 2090 } 2091 2092 /** 2093 * i40e_vc_get_max_frame_size 2094 * @vf: pointer to the VF 2095 * 2096 * Max frame size is determined based on the current port's max frame size and 2097 * whether a port VLAN is configured on this VF. The VF is not aware whether 2098 * it's in a port VLAN so the PF needs to account for this in max frame size 2099 * checks and sending the max frame size to the VF. 2100 **/ 2101 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf) 2102 { 2103 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size; 2104 2105 if (vf->port_vlan_id) 2106 max_frame_size -= VLAN_HLEN; 2107 2108 return max_frame_size; 2109 } 2110 2111 /** 2112 * i40e_vc_get_vf_resources_msg 2113 * @vf: pointer to the VF info 2114 * @msg: pointer to the msg buffer 2115 * 2116 * called from the VF to request its resources 2117 **/ 2118 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2119 { 2120 struct virtchnl_vf_resource *vfres = NULL; 2121 struct i40e_pf *pf = vf->pf; 2122 struct i40e_vsi *vsi; 2123 int num_vsis = 1; 2124 int aq_ret = 0; 2125 size_t len = 0; 2126 int ret; 2127 2128 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2129 aq_ret = -EINVAL; 2130 goto err; 2131 } 2132 2133 len = virtchnl_struct_size(vfres, vsi_res, num_vsis); 2134 vfres = kzalloc(len, GFP_KERNEL); 2135 if (!vfres) { 2136 aq_ret = -ENOMEM; 2137 len = 0; 2138 goto err; 2139 } 2140 if (VF_IS_V11(&vf->vf_ver)) 2141 vf->driver_caps = *(u32 *)msg; 2142 else 2143 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2144 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2145 VIRTCHNL_VF_OFFLOAD_VLAN; 2146 2147 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2148 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2149 vsi = pf->vsi[vf->lan_vsi_idx]; 2150 if (!vsi->info.pvid) 2151 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2152 2153 if (i40e_vf_client_capable(pf, vf->vf_id) && 2154 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) { 2155 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA; 2156 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2157 } else { 2158 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2159 } 2160 2161 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2163 } else { 2164 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2165 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2166 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2167 else 2168 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2169 } 2170 2171 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2172 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2173 vfres->vf_cap_flags |= 2174 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2175 } 2176 2177 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2178 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2179 2180 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2181 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2182 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2183 2184 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2185 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2186 dev_err(&pf->pdev->dev, 2187 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2188 vf->vf_id); 2189 aq_ret = -EINVAL; 2190 goto err; 2191 } 2192 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2193 } 2194 2195 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2196 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2197 vfres->vf_cap_flags |= 2198 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2199 } 2200 2201 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2202 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2203 2204 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2205 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2206 2207 vfres->num_vsis = num_vsis; 2208 vfres->num_queue_pairs = vf->num_queue_pairs; 2209 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2210 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2211 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2212 vfres->max_mtu = i40e_vc_get_max_frame_size(vf); 2213 2214 if (vf->lan_vsi_idx) { 2215 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2216 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2217 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2218 /* VFs only use TC 0 */ 2219 vfres->vsi_res[0].qset_handle 2220 = le16_to_cpu(vsi->info.qs_handle[0]); 2221 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2222 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2223 eth_zero_addr(vf->default_lan_addr.addr); 2224 } 2225 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2226 vf->default_lan_addr.addr); 2227 } 2228 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2229 2230 err: 2231 /* send the response back to the VF */ 2232 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2233 aq_ret, (u8 *)vfres, len); 2234 2235 kfree(vfres); 2236 return ret; 2237 } 2238 2239 /** 2240 * i40e_vc_config_promiscuous_mode_msg 2241 * @vf: pointer to the VF info 2242 * @msg: pointer to the msg buffer 2243 * 2244 * called from the VF to configure the promiscuous mode of 2245 * VF vsis 2246 **/ 2247 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2248 { 2249 struct virtchnl_promisc_info *info = 2250 (struct virtchnl_promisc_info *)msg; 2251 struct i40e_pf *pf = vf->pf; 2252 bool allmulti = false; 2253 bool alluni = false; 2254 int aq_ret = 0; 2255 2256 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2257 aq_ret = -EINVAL; 2258 goto err_out; 2259 } 2260 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2261 dev_err(&pf->pdev->dev, 2262 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2263 vf->vf_id); 2264 2265 /* Lie to the VF on purpose, because this is an error we can 2266 * ignore. Unprivileged VF is not a virtual channel error. 2267 */ 2268 aq_ret = 0; 2269 goto err_out; 2270 } 2271 2272 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2273 aq_ret = -EINVAL; 2274 goto err_out; 2275 } 2276 2277 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2278 aq_ret = -EINVAL; 2279 goto err_out; 2280 } 2281 2282 /* Multicast promiscuous handling*/ 2283 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2284 allmulti = true; 2285 2286 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2287 alluni = true; 2288 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2289 alluni); 2290 if (aq_ret) 2291 goto err_out; 2292 2293 if (allmulti) { 2294 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2295 &vf->vf_states)) 2296 dev_info(&pf->pdev->dev, 2297 "VF %d successfully set multicast promiscuous mode\n", 2298 vf->vf_id); 2299 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2300 &vf->vf_states)) 2301 dev_info(&pf->pdev->dev, 2302 "VF %d successfully unset multicast promiscuous mode\n", 2303 vf->vf_id); 2304 2305 if (alluni) { 2306 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2307 &vf->vf_states)) 2308 dev_info(&pf->pdev->dev, 2309 "VF %d successfully set unicast promiscuous mode\n", 2310 vf->vf_id); 2311 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2312 &vf->vf_states)) 2313 dev_info(&pf->pdev->dev, 2314 "VF %d successfully unset unicast promiscuous mode\n", 2315 vf->vf_id); 2316 2317 err_out: 2318 /* send the response to the VF */ 2319 return i40e_vc_send_resp_to_vf(vf, 2320 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2321 aq_ret); 2322 } 2323 2324 /** 2325 * i40e_vc_config_queues_msg 2326 * @vf: pointer to the VF info 2327 * @msg: pointer to the msg buffer 2328 * 2329 * called from the VF to configure the rx/tx 2330 * queues 2331 **/ 2332 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2333 { 2334 struct virtchnl_vsi_queue_config_info *qci = 2335 (struct virtchnl_vsi_queue_config_info *)msg; 2336 struct virtchnl_queue_pair_info *qpi; 2337 u16 vsi_id, vsi_queue_id = 0; 2338 struct i40e_pf *pf = vf->pf; 2339 int i, j = 0, idx = 0; 2340 struct i40e_vsi *vsi; 2341 u16 num_qps_all = 0; 2342 int aq_ret = 0; 2343 2344 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2345 aq_ret = -EINVAL; 2346 goto error_param; 2347 } 2348 2349 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2350 aq_ret = -EINVAL; 2351 goto error_param; 2352 } 2353 2354 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2355 aq_ret = -EINVAL; 2356 goto error_param; 2357 } 2358 2359 if (vf->adq_enabled) { 2360 for (i = 0; i < vf->num_tc; i++) 2361 num_qps_all += vf->ch[i].num_qps; 2362 if (num_qps_all != qci->num_queue_pairs) { 2363 aq_ret = -EINVAL; 2364 goto error_param; 2365 } 2366 } 2367 2368 vsi_id = qci->vsi_id; 2369 2370 for (i = 0; i < qci->num_queue_pairs; i++) { 2371 qpi = &qci->qpair[i]; 2372 2373 if (!vf->adq_enabled) { 2374 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2375 qpi->txq.queue_id)) { 2376 aq_ret = -EINVAL; 2377 goto error_param; 2378 } 2379 2380 vsi_queue_id = qpi->txq.queue_id; 2381 2382 if (qpi->txq.vsi_id != qci->vsi_id || 2383 qpi->rxq.vsi_id != qci->vsi_id || 2384 qpi->rxq.queue_id != vsi_queue_id) { 2385 aq_ret = -EINVAL; 2386 goto error_param; 2387 } 2388 } 2389 2390 if (vf->adq_enabled) { 2391 if (idx >= ARRAY_SIZE(vf->ch)) { 2392 aq_ret = -ENODEV; 2393 goto error_param; 2394 } 2395 vsi_id = vf->ch[idx].vsi_id; 2396 } 2397 2398 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2399 &qpi->rxq) || 2400 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2401 &qpi->txq)) { 2402 aq_ret = -EINVAL; 2403 goto error_param; 2404 } 2405 2406 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2407 * VF does not know about these additional VSIs and all 2408 * it cares is about its own queues. PF configures these queues 2409 * to its appropriate VSIs based on TC mapping 2410 */ 2411 if (vf->adq_enabled) { 2412 if (idx >= ARRAY_SIZE(vf->ch)) { 2413 aq_ret = -ENODEV; 2414 goto error_param; 2415 } 2416 if (j == (vf->ch[idx].num_qps - 1)) { 2417 idx++; 2418 j = 0; /* resetting the queue count */ 2419 vsi_queue_id = 0; 2420 } else { 2421 j++; 2422 vsi_queue_id++; 2423 } 2424 } 2425 } 2426 /* set vsi num_queue_pairs in use to num configured by VF */ 2427 if (!vf->adq_enabled) { 2428 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2429 qci->num_queue_pairs; 2430 } else { 2431 for (i = 0; i < vf->num_tc; i++) { 2432 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2433 vsi->num_queue_pairs = vf->ch[i].num_qps; 2434 2435 if (i40e_update_adq_vsi_queues(vsi, i)) { 2436 aq_ret = -EIO; 2437 goto error_param; 2438 } 2439 } 2440 } 2441 2442 error_param: 2443 /* send the response to the VF */ 2444 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2445 aq_ret); 2446 } 2447 2448 /** 2449 * i40e_validate_queue_map - check queue map is valid 2450 * @vf: the VF structure pointer 2451 * @vsi_id: vsi id 2452 * @queuemap: Tx or Rx queue map 2453 * 2454 * check if Tx or Rx queue map is valid 2455 **/ 2456 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2457 unsigned long queuemap) 2458 { 2459 u16 vsi_queue_id, queue_id; 2460 2461 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2462 if (vf->adq_enabled) { 2463 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2464 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2465 } else { 2466 queue_id = vsi_queue_id; 2467 } 2468 2469 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2470 return -EINVAL; 2471 } 2472 2473 return 0; 2474 } 2475 2476 /** 2477 * i40e_vc_config_irq_map_msg 2478 * @vf: pointer to the VF info 2479 * @msg: pointer to the msg buffer 2480 * 2481 * called from the VF to configure the irq to 2482 * queue map 2483 **/ 2484 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2485 { 2486 struct virtchnl_irq_map_info *irqmap_info = 2487 (struct virtchnl_irq_map_info *)msg; 2488 struct virtchnl_vector_map *map; 2489 int aq_ret = 0; 2490 u16 vsi_id; 2491 int i; 2492 2493 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2494 aq_ret = -EINVAL; 2495 goto error_param; 2496 } 2497 2498 if (irqmap_info->num_vectors > 2499 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2500 aq_ret = -EINVAL; 2501 goto error_param; 2502 } 2503 2504 for (i = 0; i < irqmap_info->num_vectors; i++) { 2505 map = &irqmap_info->vecmap[i]; 2506 /* validate msg params */ 2507 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2508 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2509 aq_ret = -EINVAL; 2510 goto error_param; 2511 } 2512 vsi_id = map->vsi_id; 2513 2514 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2515 aq_ret = -EINVAL; 2516 goto error_param; 2517 } 2518 2519 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2520 aq_ret = -EINVAL; 2521 goto error_param; 2522 } 2523 2524 i40e_config_irq_link_list(vf, vsi_id, map); 2525 } 2526 error_param: 2527 /* send the response to the VF */ 2528 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2529 aq_ret); 2530 } 2531 2532 /** 2533 * i40e_ctrl_vf_tx_rings 2534 * @vsi: the SRIOV VSI being configured 2535 * @q_map: bit map of the queues to be enabled 2536 * @enable: start or stop the queue 2537 **/ 2538 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2539 bool enable) 2540 { 2541 struct i40e_pf *pf = vsi->back; 2542 int ret = 0; 2543 u16 q_id; 2544 2545 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2546 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2547 vsi->base_queue + q_id, 2548 false /*is xdp*/, enable); 2549 if (ret) 2550 break; 2551 } 2552 return ret; 2553 } 2554 2555 /** 2556 * i40e_ctrl_vf_rx_rings 2557 * @vsi: the SRIOV VSI being configured 2558 * @q_map: bit map of the queues to be enabled 2559 * @enable: start or stop the queue 2560 **/ 2561 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2562 bool enable) 2563 { 2564 struct i40e_pf *pf = vsi->back; 2565 int ret = 0; 2566 u16 q_id; 2567 2568 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2569 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2570 enable); 2571 if (ret) 2572 break; 2573 } 2574 return ret; 2575 } 2576 2577 /** 2578 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2579 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2580 * 2581 * Returns true if validation was successful, else false. 2582 */ 2583 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2584 { 2585 if ((!vqs->rx_queues && !vqs->tx_queues) || 2586 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2587 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2588 return false; 2589 2590 return true; 2591 } 2592 2593 /** 2594 * i40e_vc_enable_queues_msg 2595 * @vf: pointer to the VF info 2596 * @msg: pointer to the msg buffer 2597 * 2598 * called from the VF to enable all or specific queue(s) 2599 **/ 2600 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2601 { 2602 struct virtchnl_queue_select *vqs = 2603 (struct virtchnl_queue_select *)msg; 2604 struct i40e_pf *pf = vf->pf; 2605 int aq_ret = 0; 2606 int i; 2607 2608 if (vf->is_disabled_from_host) { 2609 aq_ret = -EPERM; 2610 dev_info(&pf->pdev->dev, 2611 "Admin has disabled VF %d, will not enable queues\n", 2612 vf->vf_id); 2613 goto error_param; 2614 } 2615 2616 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2617 aq_ret = -EINVAL; 2618 goto error_param; 2619 } 2620 2621 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2622 aq_ret = -EINVAL; 2623 goto error_param; 2624 } 2625 2626 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2627 aq_ret = -EINVAL; 2628 goto error_param; 2629 } 2630 2631 /* Use the queue bit map sent by the VF */ 2632 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2633 true)) { 2634 aq_ret = -EIO; 2635 goto error_param; 2636 } 2637 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2638 true)) { 2639 aq_ret = -EIO; 2640 goto error_param; 2641 } 2642 2643 /* need to start the rings for additional ADq VSI's as well */ 2644 if (vf->adq_enabled) { 2645 /* zero belongs to LAN VSI */ 2646 for (i = 1; i < vf->num_tc; i++) { 2647 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2648 aq_ret = -EIO; 2649 } 2650 } 2651 2652 error_param: 2653 /* send the response to the VF */ 2654 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2655 aq_ret); 2656 } 2657 2658 /** 2659 * i40e_vc_disable_queues_msg 2660 * @vf: pointer to the VF info 2661 * @msg: pointer to the msg buffer 2662 * 2663 * called from the VF to disable all or specific 2664 * queue(s) 2665 **/ 2666 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2667 { 2668 struct virtchnl_queue_select *vqs = 2669 (struct virtchnl_queue_select *)msg; 2670 struct i40e_pf *pf = vf->pf; 2671 int aq_ret = 0; 2672 2673 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2674 aq_ret = -EINVAL; 2675 goto error_param; 2676 } 2677 2678 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2679 aq_ret = -EINVAL; 2680 goto error_param; 2681 } 2682 2683 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2684 aq_ret = -EINVAL; 2685 goto error_param; 2686 } 2687 2688 /* Use the queue bit map sent by the VF */ 2689 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2690 false)) { 2691 aq_ret = -EIO; 2692 goto error_param; 2693 } 2694 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2695 false)) { 2696 aq_ret = -EIO; 2697 goto error_param; 2698 } 2699 error_param: 2700 /* send the response to the VF */ 2701 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2702 aq_ret); 2703 } 2704 2705 /** 2706 * i40e_check_enough_queue - find big enough queue number 2707 * @vf: pointer to the VF info 2708 * @needed: the number of items needed 2709 * 2710 * Returns the base item index of the queue, or negative for error 2711 **/ 2712 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2713 { 2714 unsigned int i, cur_queues, more, pool_size; 2715 struct i40e_lump_tracking *pile; 2716 struct i40e_pf *pf = vf->pf; 2717 struct i40e_vsi *vsi; 2718 2719 vsi = pf->vsi[vf->lan_vsi_idx]; 2720 cur_queues = vsi->alloc_queue_pairs; 2721 2722 /* if current allocated queues are enough for need */ 2723 if (cur_queues >= needed) 2724 return vsi->base_queue; 2725 2726 pile = pf->qp_pile; 2727 if (cur_queues > 0) { 2728 /* if the allocated queues are not zero 2729 * just check if there are enough queues for more 2730 * behind the allocated queues. 2731 */ 2732 more = needed - cur_queues; 2733 for (i = vsi->base_queue + cur_queues; 2734 i < pile->num_entries; i++) { 2735 if (pile->list[i] & I40E_PILE_VALID_BIT) 2736 break; 2737 2738 if (more-- == 1) 2739 /* there is enough */ 2740 return vsi->base_queue; 2741 } 2742 } 2743 2744 pool_size = 0; 2745 for (i = 0; i < pile->num_entries; i++) { 2746 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2747 pool_size = 0; 2748 continue; 2749 } 2750 if (needed <= ++pool_size) 2751 /* there is enough */ 2752 return i; 2753 } 2754 2755 return -ENOMEM; 2756 } 2757 2758 /** 2759 * i40e_vc_request_queues_msg 2760 * @vf: pointer to the VF info 2761 * @msg: pointer to the msg buffer 2762 * 2763 * VFs get a default number of queues but can use this message to request a 2764 * different number. If the request is successful, PF will reset the VF and 2765 * return 0. If unsuccessful, PF will send message informing VF of number of 2766 * available queues and return result of sending VF a message. 2767 **/ 2768 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2769 { 2770 struct virtchnl_vf_res_request *vfres = 2771 (struct virtchnl_vf_res_request *)msg; 2772 u16 req_pairs = vfres->num_queue_pairs; 2773 u8 cur_pairs = vf->num_queue_pairs; 2774 struct i40e_pf *pf = vf->pf; 2775 2776 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2777 return -EINVAL; 2778 2779 if (req_pairs > I40E_MAX_VF_QUEUES) { 2780 dev_err(&pf->pdev->dev, 2781 "VF %d tried to request more than %d queues.\n", 2782 vf->vf_id, 2783 I40E_MAX_VF_QUEUES); 2784 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2785 } else if (req_pairs - cur_pairs > pf->queues_left) { 2786 dev_warn(&pf->pdev->dev, 2787 "VF %d requested %d more queues, but only %d left.\n", 2788 vf->vf_id, 2789 req_pairs - cur_pairs, 2790 pf->queues_left); 2791 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2792 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2793 dev_warn(&pf->pdev->dev, 2794 "VF %d requested %d more queues, but there is not enough for it.\n", 2795 vf->vf_id, 2796 req_pairs - cur_pairs); 2797 vfres->num_queue_pairs = cur_pairs; 2798 } else { 2799 /* successful request */ 2800 vf->num_req_queues = req_pairs; 2801 i40e_vc_reset_vf(vf, true); 2802 return 0; 2803 } 2804 2805 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2806 (u8 *)vfres, sizeof(*vfres)); 2807 } 2808 2809 /** 2810 * i40e_vc_get_stats_msg 2811 * @vf: pointer to the VF info 2812 * @msg: pointer to the msg buffer 2813 * 2814 * called from the VF to get vsi stats 2815 **/ 2816 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2817 { 2818 struct virtchnl_queue_select *vqs = 2819 (struct virtchnl_queue_select *)msg; 2820 struct i40e_pf *pf = vf->pf; 2821 struct i40e_eth_stats stats; 2822 int aq_ret = 0; 2823 struct i40e_vsi *vsi; 2824 2825 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2826 2827 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2828 aq_ret = -EINVAL; 2829 goto error_param; 2830 } 2831 2832 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2833 aq_ret = -EINVAL; 2834 goto error_param; 2835 } 2836 2837 vsi = pf->vsi[vf->lan_vsi_idx]; 2838 if (!vsi) { 2839 aq_ret = -EINVAL; 2840 goto error_param; 2841 } 2842 i40e_update_eth_stats(vsi); 2843 stats = vsi->eth_stats; 2844 2845 error_param: 2846 /* send the response back to the VF */ 2847 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2848 (u8 *)&stats, sizeof(stats)); 2849 } 2850 2851 /** 2852 * i40e_can_vf_change_mac 2853 * @vf: pointer to the VF info 2854 * 2855 * Return true if the VF is allowed to change its MAC filters, false otherwise 2856 */ 2857 static bool i40e_can_vf_change_mac(struct i40e_vf *vf) 2858 { 2859 /* If the VF MAC address has been set administratively (via the 2860 * ndo_set_vf_mac command), then deny permission to the VF to 2861 * add/delete unicast MAC addresses, unless the VF is trusted 2862 */ 2863 if (vf->pf_set_mac && !vf->trusted) 2864 return false; 2865 2866 return true; 2867 } 2868 2869 #define I40E_MAX_MACVLAN_PER_HW 3072 2870 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2871 (num_ports)) 2872 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2873 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2874 */ 2875 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2876 #define I40E_VC_MAX_VLAN_PER_VF 16 2877 2878 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2879 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2880 typeof(num_ports) num_ports_ = (num_ports); \ 2881 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2882 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2883 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2884 /** 2885 * i40e_check_vf_permission 2886 * @vf: pointer to the VF info 2887 * @al: MAC address list from virtchnl 2888 * 2889 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2890 * if any address in the list is not valid. Checks the following conditions: 2891 * 2892 * 1) broadcast and zero addresses are never valid 2893 * 2) unicast addresses are not allowed if the VMM has administratively set 2894 * the VF MAC address, unless the VF is marked as privileged. 2895 * 3) There is enough space to add all the addresses. 2896 * 2897 * Note that to guarantee consistency, it is expected this function be called 2898 * while holding the mac_filter_hash_lock, as otherwise the current number of 2899 * addresses might not be accurate. 2900 **/ 2901 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2902 struct virtchnl_ether_addr_list *al) 2903 { 2904 struct i40e_pf *pf = vf->pf; 2905 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2906 struct i40e_hw *hw = &pf->hw; 2907 int mac2add_cnt = 0; 2908 int i; 2909 2910 for (i = 0; i < al->num_elements; i++) { 2911 struct i40e_mac_filter *f; 2912 u8 *addr = al->list[i].addr; 2913 2914 if (is_broadcast_ether_addr(addr) || 2915 is_zero_ether_addr(addr)) { 2916 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2917 addr); 2918 return -EINVAL; 2919 } 2920 2921 /* If the host VMM administrator has set the VF MAC address 2922 * administratively via the ndo_set_vf_mac command then deny 2923 * permission to the VF to add or delete unicast MAC addresses. 2924 * Unless the VF is privileged and then it can do whatever. 2925 * The VF may request to set the MAC address filter already 2926 * assigned to it so do not return an error in that case. 2927 */ 2928 if (!i40e_can_vf_change_mac(vf) && 2929 !is_multicast_ether_addr(addr) && 2930 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2931 dev_err(&pf->pdev->dev, 2932 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2933 return -EPERM; 2934 } 2935 2936 /*count filters that really will be added*/ 2937 f = i40e_find_mac(vsi, addr); 2938 if (!f) 2939 ++mac2add_cnt; 2940 } 2941 2942 /* If this VF is not privileged, then we can't add more than a limited 2943 * number of addresses. Check to make sure that the additions do not 2944 * push us over the limit. 2945 */ 2946 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2947 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2948 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2949 dev_err(&pf->pdev->dev, 2950 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2951 return -EPERM; 2952 } 2953 /* If this VF is trusted, it can use more resources than untrusted. 2954 * However to ensure that every trusted VF has appropriate number of 2955 * resources, divide whole pool of resources per port and then across 2956 * all VFs. 2957 */ 2958 } else { 2959 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2960 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2961 hw->num_ports)) { 2962 dev_err(&pf->pdev->dev, 2963 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2964 return -EPERM; 2965 } 2966 } 2967 return 0; 2968 } 2969 2970 /** 2971 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr 2972 * @vc_ether_addr: used to extract the type 2973 **/ 2974 static u8 2975 i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr) 2976 { 2977 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK; 2978 } 2979 2980 /** 2981 * i40e_is_vc_addr_legacy 2982 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2983 * 2984 * check if the MAC address is from an older VF 2985 **/ 2986 static bool 2987 i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr) 2988 { 2989 return i40e_vc_ether_addr_type(vc_ether_addr) == 2990 VIRTCHNL_ETHER_ADDR_LEGACY; 2991 } 2992 2993 /** 2994 * i40e_is_vc_addr_primary 2995 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2996 * 2997 * check if the MAC address is the VF's primary MAC 2998 * This function should only be called when the MAC address in 2999 * virtchnl_ether_addr is a valid unicast MAC 3000 **/ 3001 static bool 3002 i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr) 3003 { 3004 return i40e_vc_ether_addr_type(vc_ether_addr) == 3005 VIRTCHNL_ETHER_ADDR_PRIMARY; 3006 } 3007 3008 /** 3009 * i40e_update_vf_mac_addr 3010 * @vf: VF to update 3011 * @vc_ether_addr: structure from VIRTCHNL with MAC to add 3012 * 3013 * update the VF's cached hardware MAC if allowed 3014 **/ 3015 static void 3016 i40e_update_vf_mac_addr(struct i40e_vf *vf, 3017 struct virtchnl_ether_addr *vc_ether_addr) 3018 { 3019 u8 *mac_addr = vc_ether_addr->addr; 3020 3021 if (!is_valid_ether_addr(mac_addr)) 3022 return; 3023 3024 /* If request to add MAC filter is a primary request update its default 3025 * MAC address with the requested one. If it is a legacy request then 3026 * check if current default is empty if so update the default MAC 3027 */ 3028 if (i40e_is_vc_addr_primary(vc_ether_addr)) { 3029 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3030 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) { 3031 if (is_zero_ether_addr(vf->default_lan_addr.addr)) 3032 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3033 } 3034 } 3035 3036 /** 3037 * i40e_vc_add_mac_addr_msg 3038 * @vf: pointer to the VF info 3039 * @msg: pointer to the msg buffer 3040 * 3041 * add guest mac address filter 3042 **/ 3043 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3044 { 3045 struct virtchnl_ether_addr_list *al = 3046 (struct virtchnl_ether_addr_list *)msg; 3047 struct i40e_pf *pf = vf->pf; 3048 struct i40e_vsi *vsi = NULL; 3049 int ret = 0; 3050 int i; 3051 3052 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3053 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3054 ret = -EINVAL; 3055 goto error_param; 3056 } 3057 3058 vsi = pf->vsi[vf->lan_vsi_idx]; 3059 3060 /* Lock once, because all function inside for loop accesses VSI's 3061 * MAC filter list which needs to be protected using same lock. 3062 */ 3063 spin_lock_bh(&vsi->mac_filter_hash_lock); 3064 3065 ret = i40e_check_vf_permission(vf, al); 3066 if (ret) { 3067 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3068 goto error_param; 3069 } 3070 3071 /* add new addresses to the list */ 3072 for (i = 0; i < al->num_elements; i++) { 3073 struct i40e_mac_filter *f; 3074 3075 f = i40e_find_mac(vsi, al->list[i].addr); 3076 if (!f) { 3077 f = i40e_add_mac_filter(vsi, al->list[i].addr); 3078 3079 if (!f) { 3080 dev_err(&pf->pdev->dev, 3081 "Unable to add MAC filter %pM for VF %d\n", 3082 al->list[i].addr, vf->vf_id); 3083 ret = -EINVAL; 3084 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3085 goto error_param; 3086 } 3087 } 3088 i40e_update_vf_mac_addr(vf, &al->list[i]); 3089 } 3090 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3091 3092 /* program the updated filter list */ 3093 ret = i40e_sync_vsi_filters(vsi); 3094 if (ret) 3095 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3096 vf->vf_id, ret); 3097 3098 error_param: 3099 /* send the response to the VF */ 3100 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 3101 ret, NULL, 0); 3102 } 3103 3104 /** 3105 * i40e_vc_del_mac_addr_msg 3106 * @vf: pointer to the VF info 3107 * @msg: pointer to the msg buffer 3108 * 3109 * remove guest mac address filter 3110 **/ 3111 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3112 { 3113 struct virtchnl_ether_addr_list *al = 3114 (struct virtchnl_ether_addr_list *)msg; 3115 bool was_unimac_deleted = false; 3116 struct i40e_pf *pf = vf->pf; 3117 struct i40e_vsi *vsi = NULL; 3118 int ret = 0; 3119 int i; 3120 3121 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3122 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3123 ret = -EINVAL; 3124 goto error_param; 3125 } 3126 3127 for (i = 0; i < al->num_elements; i++) { 3128 if (is_broadcast_ether_addr(al->list[i].addr) || 3129 is_zero_ether_addr(al->list[i].addr)) { 3130 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3131 al->list[i].addr, vf->vf_id); 3132 ret = -EINVAL; 3133 goto error_param; 3134 } 3135 } 3136 vsi = pf->vsi[vf->lan_vsi_idx]; 3137 3138 spin_lock_bh(&vsi->mac_filter_hash_lock); 3139 /* delete addresses from the list */ 3140 for (i = 0; i < al->num_elements; i++) { 3141 const u8 *addr = al->list[i].addr; 3142 3143 /* Allow to delete VF primary MAC only if it was not set 3144 * administratively by PF or if VF is trusted. 3145 */ 3146 if (ether_addr_equal(addr, vf->default_lan_addr.addr)) { 3147 if (i40e_can_vf_change_mac(vf)) 3148 was_unimac_deleted = true; 3149 else 3150 continue; 3151 } 3152 3153 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3154 ret = -EINVAL; 3155 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3156 goto error_param; 3157 } 3158 } 3159 3160 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3161 3162 if (was_unimac_deleted) 3163 eth_zero_addr(vf->default_lan_addr.addr); 3164 3165 /* program the updated filter list */ 3166 ret = i40e_sync_vsi_filters(vsi); 3167 if (ret) 3168 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3169 vf->vf_id, ret); 3170 3171 if (vf->trusted && was_unimac_deleted) { 3172 struct i40e_mac_filter *f; 3173 struct hlist_node *h; 3174 u8 *macaddr = NULL; 3175 int bkt; 3176 3177 /* set last unicast mac address as default */ 3178 spin_lock_bh(&vsi->mac_filter_hash_lock); 3179 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3180 if (is_valid_ether_addr(f->macaddr)) 3181 macaddr = f->macaddr; 3182 } 3183 if (macaddr) 3184 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3185 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3186 } 3187 error_param: 3188 /* send the response to the VF */ 3189 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3190 } 3191 3192 /** 3193 * i40e_vc_add_vlan_msg 3194 * @vf: pointer to the VF info 3195 * @msg: pointer to the msg buffer 3196 * 3197 * program guest vlan id 3198 **/ 3199 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3200 { 3201 struct virtchnl_vlan_filter_list *vfl = 3202 (struct virtchnl_vlan_filter_list *)msg; 3203 struct i40e_pf *pf = vf->pf; 3204 struct i40e_vsi *vsi = NULL; 3205 int aq_ret = 0; 3206 int i; 3207 3208 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3209 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3210 dev_err(&pf->pdev->dev, 3211 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3212 goto error_param; 3213 } 3214 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3215 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3216 aq_ret = -EINVAL; 3217 goto error_param; 3218 } 3219 3220 for (i = 0; i < vfl->num_elements; i++) { 3221 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3222 aq_ret = -EINVAL; 3223 dev_err(&pf->pdev->dev, 3224 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3225 goto error_param; 3226 } 3227 } 3228 vsi = pf->vsi[vf->lan_vsi_idx]; 3229 if (vsi->info.pvid) { 3230 aq_ret = -EINVAL; 3231 goto error_param; 3232 } 3233 3234 i40e_vlan_stripping_enable(vsi); 3235 for (i = 0; i < vfl->num_elements; i++) { 3236 /* add new VLAN filter */ 3237 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3238 if (!ret) 3239 vf->num_vlan++; 3240 3241 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3242 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3243 true, 3244 vfl->vlan_id[i], 3245 NULL); 3246 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3247 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3248 true, 3249 vfl->vlan_id[i], 3250 NULL); 3251 3252 if (ret) 3253 dev_err(&pf->pdev->dev, 3254 "Unable to add VLAN filter %d for VF %d, error %d\n", 3255 vfl->vlan_id[i], vf->vf_id, ret); 3256 } 3257 3258 error_param: 3259 /* send the response to the VF */ 3260 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3261 } 3262 3263 /** 3264 * i40e_vc_remove_vlan_msg 3265 * @vf: pointer to the VF info 3266 * @msg: pointer to the msg buffer 3267 * 3268 * remove programmed guest vlan id 3269 **/ 3270 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3271 { 3272 struct virtchnl_vlan_filter_list *vfl = 3273 (struct virtchnl_vlan_filter_list *)msg; 3274 struct i40e_pf *pf = vf->pf; 3275 struct i40e_vsi *vsi = NULL; 3276 int aq_ret = 0; 3277 int i; 3278 3279 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3280 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3281 aq_ret = -EINVAL; 3282 goto error_param; 3283 } 3284 3285 for (i = 0; i < vfl->num_elements; i++) { 3286 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3287 aq_ret = -EINVAL; 3288 goto error_param; 3289 } 3290 } 3291 3292 vsi = pf->vsi[vf->lan_vsi_idx]; 3293 if (vsi->info.pvid) { 3294 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3295 aq_ret = -EINVAL; 3296 goto error_param; 3297 } 3298 3299 for (i = 0; i < vfl->num_elements; i++) { 3300 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3301 vf->num_vlan--; 3302 3303 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3304 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3305 false, 3306 vfl->vlan_id[i], 3307 NULL); 3308 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3309 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3310 false, 3311 vfl->vlan_id[i], 3312 NULL); 3313 } 3314 3315 error_param: 3316 /* send the response to the VF */ 3317 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3318 } 3319 3320 /** 3321 * i40e_vc_rdma_msg 3322 * @vf: pointer to the VF info 3323 * @msg: pointer to the msg buffer 3324 * @msglen: msg length 3325 * 3326 * called from the VF for the iwarp msgs 3327 **/ 3328 static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3329 { 3330 struct i40e_pf *pf = vf->pf; 3331 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3332 int aq_ret = 0; 3333 3334 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3335 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3336 aq_ret = -EINVAL; 3337 goto error_param; 3338 } 3339 3340 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3341 msg, msglen); 3342 3343 error_param: 3344 /* send the response to the VF */ 3345 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA, 3346 aq_ret); 3347 } 3348 3349 /** 3350 * i40e_vc_rdma_qvmap_msg 3351 * @vf: pointer to the VF info 3352 * @msg: pointer to the msg buffer 3353 * @config: config qvmap or release it 3354 * 3355 * called from the VF for the iwarp msgs 3356 **/ 3357 static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3358 { 3359 struct virtchnl_rdma_qvlist_info *qvlist_info = 3360 (struct virtchnl_rdma_qvlist_info *)msg; 3361 int aq_ret = 0; 3362 3363 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3364 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3365 aq_ret = -EINVAL; 3366 goto error_param; 3367 } 3368 3369 if (config) { 3370 if (i40e_config_rdma_qvlist(vf, qvlist_info)) 3371 aq_ret = -EINVAL; 3372 } else { 3373 i40e_release_rdma_qvlist(vf); 3374 } 3375 3376 error_param: 3377 /* send the response to the VF */ 3378 return i40e_vc_send_resp_to_vf(vf, 3379 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP : 3380 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP, 3381 aq_ret); 3382 } 3383 3384 /** 3385 * i40e_vc_config_rss_key 3386 * @vf: pointer to the VF info 3387 * @msg: pointer to the msg buffer 3388 * 3389 * Configure the VF's RSS key 3390 **/ 3391 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3392 { 3393 struct virtchnl_rss_key *vrk = 3394 (struct virtchnl_rss_key *)msg; 3395 struct i40e_pf *pf = vf->pf; 3396 struct i40e_vsi *vsi = NULL; 3397 int aq_ret = 0; 3398 3399 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3400 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3401 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3402 aq_ret = -EINVAL; 3403 goto err; 3404 } 3405 3406 vsi = pf->vsi[vf->lan_vsi_idx]; 3407 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3408 err: 3409 /* send the response to the VF */ 3410 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3411 aq_ret); 3412 } 3413 3414 /** 3415 * i40e_vc_config_rss_lut 3416 * @vf: pointer to the VF info 3417 * @msg: pointer to the msg buffer 3418 * 3419 * Configure the VF's RSS LUT 3420 **/ 3421 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3422 { 3423 struct virtchnl_rss_lut *vrl = 3424 (struct virtchnl_rss_lut *)msg; 3425 struct i40e_pf *pf = vf->pf; 3426 struct i40e_vsi *vsi = NULL; 3427 int aq_ret = 0; 3428 u16 i; 3429 3430 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3431 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3432 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3433 aq_ret = -EINVAL; 3434 goto err; 3435 } 3436 3437 for (i = 0; i < vrl->lut_entries; i++) 3438 if (vrl->lut[i] >= vf->num_queue_pairs) { 3439 aq_ret = -EINVAL; 3440 goto err; 3441 } 3442 3443 vsi = pf->vsi[vf->lan_vsi_idx]; 3444 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3445 /* send the response to the VF */ 3446 err: 3447 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3448 aq_ret); 3449 } 3450 3451 /** 3452 * i40e_vc_get_rss_hena 3453 * @vf: pointer to the VF info 3454 * @msg: pointer to the msg buffer 3455 * 3456 * Return the RSS HENA bits allowed by the hardware 3457 **/ 3458 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3459 { 3460 struct virtchnl_rss_hena *vrh = NULL; 3461 struct i40e_pf *pf = vf->pf; 3462 int aq_ret = 0; 3463 int len = 0; 3464 3465 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3466 aq_ret = -EINVAL; 3467 goto err; 3468 } 3469 len = sizeof(struct virtchnl_rss_hena); 3470 3471 vrh = kzalloc(len, GFP_KERNEL); 3472 if (!vrh) { 3473 aq_ret = -ENOMEM; 3474 len = 0; 3475 goto err; 3476 } 3477 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3478 err: 3479 /* send the response back to the VF */ 3480 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3481 aq_ret, (u8 *)vrh, len); 3482 kfree(vrh); 3483 return aq_ret; 3484 } 3485 3486 /** 3487 * i40e_vc_set_rss_hena 3488 * @vf: pointer to the VF info 3489 * @msg: pointer to the msg buffer 3490 * 3491 * Set the RSS HENA bits for the VF 3492 **/ 3493 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3494 { 3495 struct virtchnl_rss_hena *vrh = 3496 (struct virtchnl_rss_hena *)msg; 3497 struct i40e_pf *pf = vf->pf; 3498 struct i40e_hw *hw = &pf->hw; 3499 int aq_ret = 0; 3500 3501 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3502 aq_ret = -EINVAL; 3503 goto err; 3504 } 3505 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3506 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3507 (u32)(vrh->hena >> 32)); 3508 3509 /* send the response to the VF */ 3510 err: 3511 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3512 } 3513 3514 /** 3515 * i40e_vc_enable_vlan_stripping 3516 * @vf: pointer to the VF info 3517 * @msg: pointer to the msg buffer 3518 * 3519 * Enable vlan header stripping for the VF 3520 **/ 3521 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3522 { 3523 struct i40e_vsi *vsi; 3524 int aq_ret = 0; 3525 3526 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3527 aq_ret = -EINVAL; 3528 goto err; 3529 } 3530 3531 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3532 i40e_vlan_stripping_enable(vsi); 3533 3534 /* send the response to the VF */ 3535 err: 3536 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3537 aq_ret); 3538 } 3539 3540 /** 3541 * i40e_vc_disable_vlan_stripping 3542 * @vf: pointer to the VF info 3543 * @msg: pointer to the msg buffer 3544 * 3545 * Disable vlan header stripping for the VF 3546 **/ 3547 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3548 { 3549 struct i40e_vsi *vsi; 3550 int aq_ret = 0; 3551 3552 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3553 aq_ret = -EINVAL; 3554 goto err; 3555 } 3556 3557 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3558 i40e_vlan_stripping_disable(vsi); 3559 3560 /* send the response to the VF */ 3561 err: 3562 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3563 aq_ret); 3564 } 3565 3566 /** 3567 * i40e_validate_cloud_filter 3568 * @vf: pointer to VF structure 3569 * @tc_filter: pointer to filter requested 3570 * 3571 * This function validates cloud filter programmed as TC filter for ADq 3572 **/ 3573 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3574 struct virtchnl_filter *tc_filter) 3575 { 3576 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3577 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3578 struct i40e_pf *pf = vf->pf; 3579 struct i40e_vsi *vsi = NULL; 3580 struct i40e_mac_filter *f; 3581 struct hlist_node *h; 3582 bool found = false; 3583 int bkt; 3584 3585 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) { 3586 dev_info(&pf->pdev->dev, 3587 "VF %d: ADQ doesn't support this action (%d)\n", 3588 vf->vf_id, tc_filter->action); 3589 goto err; 3590 } 3591 3592 /* action_meta is TC number here to which the filter is applied */ 3593 if (!tc_filter->action_meta || 3594 tc_filter->action_meta > vf->num_tc) { 3595 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3596 vf->vf_id, tc_filter->action_meta); 3597 goto err; 3598 } 3599 3600 /* Check filter if it's programmed for advanced mode or basic mode. 3601 * There are two ADq modes (for VF only), 3602 * 1. Basic mode: intended to allow as many filter options as possible 3603 * to be added to a VF in Non-trusted mode. Main goal is 3604 * to add filters to its own MAC and VLAN id. 3605 * 2. Advanced mode: is for allowing filters to be applied other than 3606 * its own MAC or VLAN. This mode requires the VF to be 3607 * Trusted. 3608 */ 3609 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3610 vsi = pf->vsi[vf->lan_vsi_idx]; 3611 f = i40e_find_mac(vsi, data.dst_mac); 3612 3613 if (!f) { 3614 dev_info(&pf->pdev->dev, 3615 "Destination MAC %pM doesn't belong to VF %d\n", 3616 data.dst_mac, vf->vf_id); 3617 goto err; 3618 } 3619 3620 if (mask.vlan_id) { 3621 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3622 hlist) { 3623 if (f->vlan == ntohs(data.vlan_id)) { 3624 found = true; 3625 break; 3626 } 3627 } 3628 if (!found) { 3629 dev_info(&pf->pdev->dev, 3630 "VF %d doesn't have any VLAN id %u\n", 3631 vf->vf_id, ntohs(data.vlan_id)); 3632 goto err; 3633 } 3634 } 3635 } else { 3636 /* Check if VF is trusted */ 3637 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3638 dev_err(&pf->pdev->dev, 3639 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3640 vf->vf_id); 3641 return -EIO; 3642 } 3643 } 3644 3645 if (mask.dst_mac[0] & data.dst_mac[0]) { 3646 if (is_broadcast_ether_addr(data.dst_mac) || 3647 is_zero_ether_addr(data.dst_mac)) { 3648 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3649 vf->vf_id, data.dst_mac); 3650 goto err; 3651 } 3652 } 3653 3654 if (mask.src_mac[0] & data.src_mac[0]) { 3655 if (is_broadcast_ether_addr(data.src_mac) || 3656 is_zero_ether_addr(data.src_mac)) { 3657 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3658 vf->vf_id, data.src_mac); 3659 goto err; 3660 } 3661 } 3662 3663 if (mask.dst_port & data.dst_port) { 3664 if (!data.dst_port) { 3665 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3666 vf->vf_id); 3667 goto err; 3668 } 3669 } 3670 3671 if (mask.src_port & data.src_port) { 3672 if (!data.src_port) { 3673 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3674 vf->vf_id); 3675 goto err; 3676 } 3677 } 3678 3679 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3680 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3681 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3682 vf->vf_id); 3683 goto err; 3684 } 3685 3686 if (mask.vlan_id & data.vlan_id) { 3687 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3688 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3689 vf->vf_id); 3690 goto err; 3691 } 3692 } 3693 3694 return 0; 3695 err: 3696 return -EIO; 3697 } 3698 3699 /** 3700 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3701 * @vf: pointer to the VF info 3702 * @seid: seid of the vsi it is searching for 3703 **/ 3704 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3705 { 3706 struct i40e_pf *pf = vf->pf; 3707 struct i40e_vsi *vsi = NULL; 3708 int i; 3709 3710 for (i = 0; i < vf->num_tc ; i++) { 3711 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3712 if (vsi && vsi->seid == seid) 3713 return vsi; 3714 } 3715 return NULL; 3716 } 3717 3718 /** 3719 * i40e_del_all_cloud_filters 3720 * @vf: pointer to the VF info 3721 * 3722 * This function deletes all cloud filters 3723 **/ 3724 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3725 { 3726 struct i40e_cloud_filter *cfilter = NULL; 3727 struct i40e_pf *pf = vf->pf; 3728 struct i40e_vsi *vsi = NULL; 3729 struct hlist_node *node; 3730 int ret; 3731 3732 hlist_for_each_entry_safe(cfilter, node, 3733 &vf->cloud_filter_list, cloud_node) { 3734 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3735 3736 if (!vsi) { 3737 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3738 vf->vf_id, cfilter->seid); 3739 continue; 3740 } 3741 3742 if (cfilter->dst_port) 3743 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3744 false); 3745 else 3746 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3747 if (ret) 3748 dev_err(&pf->pdev->dev, 3749 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3750 vf->vf_id, ERR_PTR(ret), 3751 i40e_aq_str(&pf->hw, 3752 pf->hw.aq.asq_last_status)); 3753 3754 hlist_del(&cfilter->cloud_node); 3755 kfree(cfilter); 3756 vf->num_cloud_filters--; 3757 } 3758 } 3759 3760 /** 3761 * i40e_vc_del_cloud_filter 3762 * @vf: pointer to the VF info 3763 * @msg: pointer to the msg buffer 3764 * 3765 * This function deletes a cloud filter programmed as TC filter for ADq 3766 **/ 3767 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3768 { 3769 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3770 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3771 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3772 struct i40e_cloud_filter cfilter, *cf = NULL; 3773 struct i40e_pf *pf = vf->pf; 3774 struct i40e_vsi *vsi = NULL; 3775 struct hlist_node *node; 3776 int aq_ret = 0; 3777 int i, ret; 3778 3779 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3780 aq_ret = -EINVAL; 3781 goto err; 3782 } 3783 3784 if (!vf->adq_enabled) { 3785 dev_info(&pf->pdev->dev, 3786 "VF %d: ADq not enabled, can't apply cloud filter\n", 3787 vf->vf_id); 3788 aq_ret = -EINVAL; 3789 goto err; 3790 } 3791 3792 if (i40e_validate_cloud_filter(vf, vcf)) { 3793 dev_info(&pf->pdev->dev, 3794 "VF %d: Invalid input, can't apply cloud filter\n", 3795 vf->vf_id); 3796 aq_ret = -EINVAL; 3797 goto err; 3798 } 3799 3800 memset(&cfilter, 0, sizeof(cfilter)); 3801 /* parse destination mac address */ 3802 for (i = 0; i < ETH_ALEN; i++) 3803 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3804 3805 /* parse source mac address */ 3806 for (i = 0; i < ETH_ALEN; i++) 3807 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3808 3809 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3810 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3811 cfilter.src_port = mask.src_port & tcf.src_port; 3812 3813 switch (vcf->flow_type) { 3814 case VIRTCHNL_TCP_V4_FLOW: 3815 cfilter.n_proto = ETH_P_IP; 3816 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3817 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3818 ARRAY_SIZE(tcf.dst_ip)); 3819 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3820 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3821 ARRAY_SIZE(tcf.dst_ip)); 3822 break; 3823 case VIRTCHNL_TCP_V6_FLOW: 3824 cfilter.n_proto = ETH_P_IPV6; 3825 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3826 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3827 sizeof(cfilter.ip.v6.dst_ip6)); 3828 if (mask.src_ip[3] & tcf.src_ip[3]) 3829 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3830 sizeof(cfilter.ip.v6.src_ip6)); 3831 break; 3832 default: 3833 /* TC filter can be configured based on different combinations 3834 * and in this case IP is not a part of filter config 3835 */ 3836 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3837 vf->vf_id); 3838 } 3839 3840 /* get the vsi to which the tc belongs to */ 3841 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3842 cfilter.seid = vsi->seid; 3843 cfilter.flags = vcf->field_flags; 3844 3845 /* Deleting TC filter */ 3846 if (tcf.dst_port) 3847 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3848 else 3849 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3850 if (ret) { 3851 dev_err(&pf->pdev->dev, 3852 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3853 vf->vf_id, ERR_PTR(ret), 3854 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3855 goto err; 3856 } 3857 3858 hlist_for_each_entry_safe(cf, node, 3859 &vf->cloud_filter_list, cloud_node) { 3860 if (cf->seid != cfilter.seid) 3861 continue; 3862 if (mask.dst_port) 3863 if (cfilter.dst_port != cf->dst_port) 3864 continue; 3865 if (mask.dst_mac[0]) 3866 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3867 continue; 3868 /* for ipv4 data to be valid, only first byte of mask is set */ 3869 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3870 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3871 ARRAY_SIZE(tcf.dst_ip))) 3872 continue; 3873 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3874 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3875 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3876 sizeof(cfilter.ip.v6.src_ip6))) 3877 continue; 3878 if (mask.vlan_id) 3879 if (cfilter.vlan_id != cf->vlan_id) 3880 continue; 3881 3882 hlist_del(&cf->cloud_node); 3883 kfree(cf); 3884 vf->num_cloud_filters--; 3885 } 3886 3887 err: 3888 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3889 aq_ret); 3890 } 3891 3892 /** 3893 * i40e_vc_add_cloud_filter 3894 * @vf: pointer to the VF info 3895 * @msg: pointer to the msg buffer 3896 * 3897 * This function adds a cloud filter programmed as TC filter for ADq 3898 **/ 3899 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3900 { 3901 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3902 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3903 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3904 struct i40e_cloud_filter *cfilter = NULL; 3905 struct i40e_pf *pf = vf->pf; 3906 struct i40e_vsi *vsi = NULL; 3907 int aq_ret = 0; 3908 int i; 3909 3910 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3911 aq_ret = -EINVAL; 3912 goto err_out; 3913 } 3914 3915 if (!vf->adq_enabled) { 3916 dev_info(&pf->pdev->dev, 3917 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3918 vf->vf_id); 3919 aq_ret = -EINVAL; 3920 goto err_out; 3921 } 3922 3923 if (i40e_validate_cloud_filter(vf, vcf)) { 3924 dev_info(&pf->pdev->dev, 3925 "VF %d: Invalid input/s, can't apply cloud filter\n", 3926 vf->vf_id); 3927 aq_ret = -EINVAL; 3928 goto err_out; 3929 } 3930 3931 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3932 if (!cfilter) { 3933 aq_ret = -ENOMEM; 3934 goto err_out; 3935 } 3936 3937 /* parse destination mac address */ 3938 for (i = 0; i < ETH_ALEN; i++) 3939 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3940 3941 /* parse source mac address */ 3942 for (i = 0; i < ETH_ALEN; i++) 3943 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3944 3945 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3946 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3947 cfilter->src_port = mask.src_port & tcf.src_port; 3948 3949 switch (vcf->flow_type) { 3950 case VIRTCHNL_TCP_V4_FLOW: 3951 cfilter->n_proto = ETH_P_IP; 3952 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3953 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3954 ARRAY_SIZE(tcf.dst_ip)); 3955 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3956 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3957 ARRAY_SIZE(tcf.dst_ip)); 3958 break; 3959 case VIRTCHNL_TCP_V6_FLOW: 3960 cfilter->n_proto = ETH_P_IPV6; 3961 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3962 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3963 sizeof(cfilter->ip.v6.dst_ip6)); 3964 if (mask.src_ip[3] & tcf.src_ip[3]) 3965 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3966 sizeof(cfilter->ip.v6.src_ip6)); 3967 break; 3968 default: 3969 /* TC filter can be configured based on different combinations 3970 * and in this case IP is not a part of filter config 3971 */ 3972 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3973 vf->vf_id); 3974 } 3975 3976 /* get the VSI to which the TC belongs to */ 3977 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3978 cfilter->seid = vsi->seid; 3979 cfilter->flags = vcf->field_flags; 3980 3981 /* Adding cloud filter programmed as TC filter */ 3982 if (tcf.dst_port) 3983 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3984 else 3985 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3986 if (aq_ret) { 3987 dev_err(&pf->pdev->dev, 3988 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n", 3989 vf->vf_id, ERR_PTR(aq_ret), 3990 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3991 goto err_free; 3992 } 3993 3994 INIT_HLIST_NODE(&cfilter->cloud_node); 3995 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3996 /* release the pointer passing it to the collection */ 3997 cfilter = NULL; 3998 vf->num_cloud_filters++; 3999 err_free: 4000 kfree(cfilter); 4001 err_out: 4002 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 4003 aq_ret); 4004 } 4005 4006 /** 4007 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 4008 * @vf: pointer to the VF info 4009 * @msg: pointer to the msg buffer 4010 **/ 4011 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 4012 { 4013 struct virtchnl_tc_info *tci = 4014 (struct virtchnl_tc_info *)msg; 4015 struct i40e_pf *pf = vf->pf; 4016 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4017 int i, adq_request_qps = 0; 4018 int aq_ret = 0; 4019 u64 speed = 0; 4020 4021 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4022 aq_ret = -EINVAL; 4023 goto err; 4024 } 4025 4026 /* ADq cannot be applied if spoof check is ON */ 4027 if (vf->spoofchk) { 4028 dev_err(&pf->pdev->dev, 4029 "Spoof check is ON, turn it OFF to enable ADq\n"); 4030 aq_ret = -EINVAL; 4031 goto err; 4032 } 4033 4034 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 4035 dev_err(&pf->pdev->dev, 4036 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 4037 vf->vf_id); 4038 aq_ret = -EINVAL; 4039 goto err; 4040 } 4041 4042 /* max number of traffic classes for VF currently capped at 4 */ 4043 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 4044 dev_err(&pf->pdev->dev, 4045 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 4046 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 4047 aq_ret = -EINVAL; 4048 goto err; 4049 } 4050 4051 /* validate queues for each TC */ 4052 for (i = 0; i < tci->num_tc; i++) 4053 if (!tci->list[i].count || 4054 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 4055 dev_err(&pf->pdev->dev, 4056 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 4057 vf->vf_id, i, tci->list[i].count, 4058 I40E_DEFAULT_QUEUES_PER_VF); 4059 aq_ret = -EINVAL; 4060 goto err; 4061 } 4062 4063 /* need Max VF queues but already have default number of queues */ 4064 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 4065 4066 if (pf->queues_left < adq_request_qps) { 4067 dev_err(&pf->pdev->dev, 4068 "No queues left to allocate to VF %d\n", 4069 vf->vf_id); 4070 aq_ret = -EINVAL; 4071 goto err; 4072 } else { 4073 /* we need to allocate max VF queues to enable ADq so as to 4074 * make sure ADq enabled VF always gets back queues when it 4075 * goes through a reset. 4076 */ 4077 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 4078 } 4079 4080 /* get link speed in MB to validate rate limit */ 4081 speed = i40e_vc_link_speed2mbps(ls->link_speed); 4082 if (speed == SPEED_UNKNOWN) { 4083 dev_err(&pf->pdev->dev, 4084 "Cannot detect link speed\n"); 4085 aq_ret = -EINVAL; 4086 goto err; 4087 } 4088 4089 /* parse data from the queue channel info */ 4090 vf->num_tc = tci->num_tc; 4091 for (i = 0; i < vf->num_tc; i++) { 4092 if (tci->list[i].max_tx_rate) { 4093 if (tci->list[i].max_tx_rate > speed) { 4094 dev_err(&pf->pdev->dev, 4095 "Invalid max tx rate %llu specified for VF %d.", 4096 tci->list[i].max_tx_rate, 4097 vf->vf_id); 4098 aq_ret = -EINVAL; 4099 goto err; 4100 } else { 4101 vf->ch[i].max_tx_rate = 4102 tci->list[i].max_tx_rate; 4103 } 4104 } 4105 vf->ch[i].num_qps = tci->list[i].count; 4106 } 4107 4108 /* set this flag only after making sure all inputs are sane */ 4109 vf->adq_enabled = true; 4110 4111 /* reset the VF in order to allocate resources */ 4112 i40e_vc_reset_vf(vf, true); 4113 4114 return 0; 4115 4116 /* send the response to the VF */ 4117 err: 4118 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 4119 aq_ret); 4120 } 4121 4122 /** 4123 * i40e_vc_del_qch_msg 4124 * @vf: pointer to the VF info 4125 * @msg: pointer to the msg buffer 4126 **/ 4127 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 4128 { 4129 struct i40e_pf *pf = vf->pf; 4130 int aq_ret = 0; 4131 4132 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4133 aq_ret = -EINVAL; 4134 goto err; 4135 } 4136 4137 if (vf->adq_enabled) { 4138 i40e_del_all_cloud_filters(vf); 4139 i40e_del_qch(vf); 4140 vf->adq_enabled = false; 4141 vf->num_tc = 0; 4142 dev_info(&pf->pdev->dev, 4143 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4144 vf->vf_id); 4145 } else { 4146 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4147 vf->vf_id); 4148 aq_ret = -EINVAL; 4149 } 4150 4151 /* reset the VF in order to allocate resources */ 4152 i40e_vc_reset_vf(vf, true); 4153 4154 return 0; 4155 4156 err: 4157 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4158 aq_ret); 4159 } 4160 4161 /** 4162 * i40e_vc_process_vf_msg 4163 * @pf: pointer to the PF structure 4164 * @vf_id: source VF id 4165 * @v_opcode: operation code 4166 * @v_retval: unused return value code 4167 * @msg: pointer to the msg buffer 4168 * @msglen: msg length 4169 * 4170 * called from the common aeq/arq handler to 4171 * process request from VF 4172 **/ 4173 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4174 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4175 { 4176 struct i40e_hw *hw = &pf->hw; 4177 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4178 struct i40e_vf *vf; 4179 int ret; 4180 4181 pf->vf_aq_requests++; 4182 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4183 return -EINVAL; 4184 vf = &(pf->vf[local_vf_id]); 4185 4186 /* Check if VF is disabled. */ 4187 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4188 return -EINVAL; 4189 4190 /* perform basic checks on the msg */ 4191 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4192 4193 if (ret) { 4194 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL); 4195 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4196 local_vf_id, v_opcode, msglen); 4197 return ret; 4198 } 4199 4200 switch (v_opcode) { 4201 case VIRTCHNL_OP_VERSION: 4202 ret = i40e_vc_get_version_msg(vf, msg); 4203 break; 4204 case VIRTCHNL_OP_GET_VF_RESOURCES: 4205 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4206 i40e_vc_notify_vf_link_state(vf); 4207 break; 4208 case VIRTCHNL_OP_RESET_VF: 4209 i40e_vc_reset_vf(vf, false); 4210 ret = 0; 4211 break; 4212 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4213 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4214 break; 4215 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4216 ret = i40e_vc_config_queues_msg(vf, msg); 4217 break; 4218 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4219 ret = i40e_vc_config_irq_map_msg(vf, msg); 4220 break; 4221 case VIRTCHNL_OP_ENABLE_QUEUES: 4222 ret = i40e_vc_enable_queues_msg(vf, msg); 4223 i40e_vc_notify_vf_link_state(vf); 4224 break; 4225 case VIRTCHNL_OP_DISABLE_QUEUES: 4226 ret = i40e_vc_disable_queues_msg(vf, msg); 4227 break; 4228 case VIRTCHNL_OP_ADD_ETH_ADDR: 4229 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4230 break; 4231 case VIRTCHNL_OP_DEL_ETH_ADDR: 4232 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4233 break; 4234 case VIRTCHNL_OP_ADD_VLAN: 4235 ret = i40e_vc_add_vlan_msg(vf, msg); 4236 break; 4237 case VIRTCHNL_OP_DEL_VLAN: 4238 ret = i40e_vc_remove_vlan_msg(vf, msg); 4239 break; 4240 case VIRTCHNL_OP_GET_STATS: 4241 ret = i40e_vc_get_stats_msg(vf, msg); 4242 break; 4243 case VIRTCHNL_OP_RDMA: 4244 ret = i40e_vc_rdma_msg(vf, msg, msglen); 4245 break; 4246 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP: 4247 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true); 4248 break; 4249 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP: 4250 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false); 4251 break; 4252 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4253 ret = i40e_vc_config_rss_key(vf, msg); 4254 break; 4255 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4256 ret = i40e_vc_config_rss_lut(vf, msg); 4257 break; 4258 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4259 ret = i40e_vc_get_rss_hena(vf, msg); 4260 break; 4261 case VIRTCHNL_OP_SET_RSS_HENA: 4262 ret = i40e_vc_set_rss_hena(vf, msg); 4263 break; 4264 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4265 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4266 break; 4267 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4268 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4269 break; 4270 case VIRTCHNL_OP_REQUEST_QUEUES: 4271 ret = i40e_vc_request_queues_msg(vf, msg); 4272 break; 4273 case VIRTCHNL_OP_ENABLE_CHANNELS: 4274 ret = i40e_vc_add_qch_msg(vf, msg); 4275 break; 4276 case VIRTCHNL_OP_DISABLE_CHANNELS: 4277 ret = i40e_vc_del_qch_msg(vf, msg); 4278 break; 4279 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4280 ret = i40e_vc_add_cloud_filter(vf, msg); 4281 break; 4282 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4283 ret = i40e_vc_del_cloud_filter(vf, msg); 4284 break; 4285 case VIRTCHNL_OP_UNKNOWN: 4286 default: 4287 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4288 v_opcode, local_vf_id); 4289 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4290 -EOPNOTSUPP); 4291 break; 4292 } 4293 4294 return ret; 4295 } 4296 4297 /** 4298 * i40e_vc_process_vflr_event 4299 * @pf: pointer to the PF structure 4300 * 4301 * called from the vlfr irq handler to 4302 * free up VF resources and state variables 4303 **/ 4304 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4305 { 4306 struct i40e_hw *hw = &pf->hw; 4307 u32 reg, reg_idx, bit_idx; 4308 struct i40e_vf *vf; 4309 int vf_id; 4310 4311 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4312 return 0; 4313 4314 /* Re-enable the VFLR interrupt cause here, before looking for which 4315 * VF got reset. Otherwise, if another VF gets a reset while the 4316 * first one is being processed, that interrupt will be lost, and 4317 * that VF will be stuck in reset forever. 4318 */ 4319 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4320 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4321 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4322 i40e_flush(hw); 4323 4324 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4325 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4326 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4327 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4328 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4329 vf = &pf->vf[vf_id]; 4330 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4331 if (reg & BIT(bit_idx)) 4332 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4333 i40e_reset_vf(vf, true); 4334 } 4335 4336 return 0; 4337 } 4338 4339 /** 4340 * i40e_validate_vf 4341 * @pf: the physical function 4342 * @vf_id: VF identifier 4343 * 4344 * Check that the VF is enabled and the VSI exists. 4345 * 4346 * Returns 0 on success, negative on failure 4347 **/ 4348 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4349 { 4350 struct i40e_vsi *vsi; 4351 struct i40e_vf *vf; 4352 int ret = 0; 4353 4354 if (vf_id >= pf->num_alloc_vfs) { 4355 dev_err(&pf->pdev->dev, 4356 "Invalid VF Identifier %d\n", vf_id); 4357 ret = -EINVAL; 4358 goto err_out; 4359 } 4360 vf = &pf->vf[vf_id]; 4361 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4362 if (!vsi) 4363 ret = -EINVAL; 4364 err_out: 4365 return ret; 4366 } 4367 4368 /** 4369 * i40e_check_vf_init_timeout 4370 * @vf: the virtual function 4371 * 4372 * Check that the VF's initialization was successfully done and if not 4373 * wait up to 300ms for its finish. 4374 * 4375 * Returns true when VF is initialized, false on timeout 4376 **/ 4377 static bool i40e_check_vf_init_timeout(struct i40e_vf *vf) 4378 { 4379 int i; 4380 4381 /* When the VF is resetting wait until it is done. 4382 * It can take up to 200 milliseconds, but wait for 4383 * up to 300 milliseconds to be safe. 4384 */ 4385 for (i = 0; i < 15; i++) { 4386 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4387 return true; 4388 msleep(20); 4389 } 4390 4391 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4392 dev_err(&vf->pf->pdev->dev, 4393 "VF %d still in reset. Try again.\n", vf->vf_id); 4394 return false; 4395 } 4396 4397 return true; 4398 } 4399 4400 /** 4401 * i40e_ndo_set_vf_mac 4402 * @netdev: network interface device structure 4403 * @vf_id: VF identifier 4404 * @mac: mac address 4405 * 4406 * program VF mac address 4407 **/ 4408 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4409 { 4410 struct i40e_netdev_priv *np = netdev_priv(netdev); 4411 struct i40e_vsi *vsi = np->vsi; 4412 struct i40e_pf *pf = vsi->back; 4413 struct i40e_mac_filter *f; 4414 struct i40e_vf *vf; 4415 int ret = 0; 4416 struct hlist_node *h; 4417 int bkt; 4418 4419 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4420 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4421 return -EAGAIN; 4422 } 4423 4424 /* validate the request */ 4425 ret = i40e_validate_vf(pf, vf_id); 4426 if (ret) 4427 goto error_param; 4428 4429 vf = &pf->vf[vf_id]; 4430 if (!i40e_check_vf_init_timeout(vf)) { 4431 ret = -EAGAIN; 4432 goto error_param; 4433 } 4434 vsi = pf->vsi[vf->lan_vsi_idx]; 4435 4436 if (is_multicast_ether_addr(mac)) { 4437 dev_err(&pf->pdev->dev, 4438 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4439 ret = -EINVAL; 4440 goto error_param; 4441 } 4442 4443 /* Lock once because below invoked function add/del_filter requires 4444 * mac_filter_hash_lock to be held 4445 */ 4446 spin_lock_bh(&vsi->mac_filter_hash_lock); 4447 4448 /* delete the temporary mac address */ 4449 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4450 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4451 4452 /* Delete all the filters for this VSI - we're going to kill it 4453 * anyway. 4454 */ 4455 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4456 __i40e_del_filter(vsi, f); 4457 4458 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4459 4460 /* program mac filter */ 4461 if (i40e_sync_vsi_filters(vsi)) { 4462 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4463 ret = -EIO; 4464 goto error_param; 4465 } 4466 ether_addr_copy(vf->default_lan_addr.addr, mac); 4467 4468 if (is_zero_ether_addr(mac)) { 4469 vf->pf_set_mac = false; 4470 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4471 } else { 4472 vf->pf_set_mac = true; 4473 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4474 mac, vf_id); 4475 } 4476 4477 /* Force the VF interface down so it has to bring up with new MAC 4478 * address 4479 */ 4480 i40e_vc_reset_vf(vf, true); 4481 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4482 4483 error_param: 4484 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4485 return ret; 4486 } 4487 4488 /** 4489 * i40e_ndo_set_vf_port_vlan 4490 * @netdev: network interface device structure 4491 * @vf_id: VF identifier 4492 * @vlan_id: mac address 4493 * @qos: priority setting 4494 * @vlan_proto: vlan protocol 4495 * 4496 * program VF vlan id and/or qos 4497 **/ 4498 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4499 u16 vlan_id, u8 qos, __be16 vlan_proto) 4500 { 4501 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4502 struct i40e_netdev_priv *np = netdev_priv(netdev); 4503 bool allmulti = false, alluni = false; 4504 struct i40e_pf *pf = np->vsi->back; 4505 struct i40e_vsi *vsi; 4506 struct i40e_vf *vf; 4507 int ret = 0; 4508 4509 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4510 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4511 return -EAGAIN; 4512 } 4513 4514 /* validate the request */ 4515 ret = i40e_validate_vf(pf, vf_id); 4516 if (ret) 4517 goto error_pvid; 4518 4519 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4520 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4521 ret = -EINVAL; 4522 goto error_pvid; 4523 } 4524 4525 if (vlan_proto != htons(ETH_P_8021Q)) { 4526 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4527 ret = -EPROTONOSUPPORT; 4528 goto error_pvid; 4529 } 4530 4531 vf = &pf->vf[vf_id]; 4532 if (!i40e_check_vf_init_timeout(vf)) { 4533 ret = -EAGAIN; 4534 goto error_pvid; 4535 } 4536 vsi = pf->vsi[vf->lan_vsi_idx]; 4537 4538 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4539 /* duplicate request, so just return success */ 4540 goto error_pvid; 4541 4542 i40e_vlan_stripping_enable(vsi); 4543 4544 /* Locked once because multiple functions below iterate list */ 4545 spin_lock_bh(&vsi->mac_filter_hash_lock); 4546 4547 /* Check for condition where there was already a port VLAN ID 4548 * filter set and now it is being deleted by setting it to zero. 4549 * Additionally check for the condition where there was a port 4550 * VLAN but now there is a new and different port VLAN being set. 4551 * Before deleting all the old VLAN filters we must add new ones 4552 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4553 * MAC addresses deleted. 4554 */ 4555 if ((!(vlan_id || qos) || 4556 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4557 vsi->info.pvid) { 4558 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4559 if (ret) { 4560 dev_info(&vsi->back->pdev->dev, 4561 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4562 vsi->back->hw.aq.asq_last_status); 4563 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4564 goto error_pvid; 4565 } 4566 } 4567 4568 if (vsi->info.pvid) { 4569 /* remove all filters on the old VLAN */ 4570 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4571 VLAN_VID_MASK)); 4572 } 4573 4574 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4575 4576 /* disable promisc modes in case they were enabled */ 4577 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4578 allmulti, alluni); 4579 if (ret) { 4580 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4581 goto error_pvid; 4582 } 4583 4584 if (vlan_id || qos) 4585 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4586 else 4587 i40e_vsi_remove_pvid(vsi); 4588 spin_lock_bh(&vsi->mac_filter_hash_lock); 4589 4590 if (vlan_id) { 4591 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4592 vlan_id, qos, vf_id); 4593 4594 /* add new VLAN filter for each MAC */ 4595 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4596 if (ret) { 4597 dev_info(&vsi->back->pdev->dev, 4598 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4599 vsi->back->hw.aq.asq_last_status); 4600 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4601 goto error_pvid; 4602 } 4603 4604 /* remove the previously added non-VLAN MAC filters */ 4605 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4606 } 4607 4608 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4609 4610 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4611 alluni = true; 4612 4613 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4614 allmulti = true; 4615 4616 /* Schedule the worker thread to take care of applying changes */ 4617 i40e_service_event_schedule(vsi->back); 4618 4619 if (ret) { 4620 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4621 goto error_pvid; 4622 } 4623 4624 /* The Port VLAN needs to be saved across resets the same as the 4625 * default LAN MAC address. 4626 */ 4627 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4628 4629 i40e_vc_reset_vf(vf, true); 4630 /* During reset the VF got a new VSI, so refresh a pointer. */ 4631 vsi = pf->vsi[vf->lan_vsi_idx]; 4632 4633 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4634 if (ret) { 4635 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4636 goto error_pvid; 4637 } 4638 4639 ret = 0; 4640 4641 error_pvid: 4642 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4643 return ret; 4644 } 4645 4646 /** 4647 * i40e_ndo_set_vf_bw 4648 * @netdev: network interface device structure 4649 * @vf_id: VF identifier 4650 * @min_tx_rate: Minimum Tx rate 4651 * @max_tx_rate: Maximum Tx rate 4652 * 4653 * configure VF Tx rate 4654 **/ 4655 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4656 int max_tx_rate) 4657 { 4658 struct i40e_netdev_priv *np = netdev_priv(netdev); 4659 struct i40e_pf *pf = np->vsi->back; 4660 struct i40e_vsi *vsi; 4661 struct i40e_vf *vf; 4662 int ret = 0; 4663 4664 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4665 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4666 return -EAGAIN; 4667 } 4668 4669 /* validate the request */ 4670 ret = i40e_validate_vf(pf, vf_id); 4671 if (ret) 4672 goto error; 4673 4674 if (min_tx_rate) { 4675 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4676 min_tx_rate, vf_id); 4677 ret = -EINVAL; 4678 goto error; 4679 } 4680 4681 vf = &pf->vf[vf_id]; 4682 if (!i40e_check_vf_init_timeout(vf)) { 4683 ret = -EAGAIN; 4684 goto error; 4685 } 4686 vsi = pf->vsi[vf->lan_vsi_idx]; 4687 4688 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4689 if (ret) 4690 goto error; 4691 4692 vf->tx_rate = max_tx_rate; 4693 error: 4694 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4695 return ret; 4696 } 4697 4698 /** 4699 * i40e_ndo_get_vf_config 4700 * @netdev: network interface device structure 4701 * @vf_id: VF identifier 4702 * @ivi: VF configuration structure 4703 * 4704 * return VF configuration 4705 **/ 4706 int i40e_ndo_get_vf_config(struct net_device *netdev, 4707 int vf_id, struct ifla_vf_info *ivi) 4708 { 4709 struct i40e_netdev_priv *np = netdev_priv(netdev); 4710 struct i40e_vsi *vsi = np->vsi; 4711 struct i40e_pf *pf = vsi->back; 4712 struct i40e_vf *vf; 4713 int ret = 0; 4714 4715 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4716 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4717 return -EAGAIN; 4718 } 4719 4720 /* validate the request */ 4721 ret = i40e_validate_vf(pf, vf_id); 4722 if (ret) 4723 goto error_param; 4724 4725 vf = &pf->vf[vf_id]; 4726 /* first vsi is always the LAN vsi */ 4727 vsi = pf->vsi[vf->lan_vsi_idx]; 4728 if (!vsi) { 4729 ret = -ENOENT; 4730 goto error_param; 4731 } 4732 4733 ivi->vf = vf_id; 4734 4735 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4736 4737 ivi->max_tx_rate = vf->tx_rate; 4738 ivi->min_tx_rate = 0; 4739 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4740 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4741 I40E_VLAN_PRIORITY_SHIFT; 4742 if (vf->link_forced == false) 4743 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4744 else if (vf->link_up == true) 4745 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4746 else 4747 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4748 ivi->spoofchk = vf->spoofchk; 4749 ivi->trusted = vf->trusted; 4750 ret = 0; 4751 4752 error_param: 4753 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4754 return ret; 4755 } 4756 4757 /** 4758 * i40e_ndo_set_vf_link_state 4759 * @netdev: network interface device structure 4760 * @vf_id: VF identifier 4761 * @link: required link state 4762 * 4763 * Set the link state of a specified VF, regardless of physical link state 4764 **/ 4765 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4766 { 4767 struct i40e_netdev_priv *np = netdev_priv(netdev); 4768 struct i40e_pf *pf = np->vsi->back; 4769 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4770 struct virtchnl_pf_event pfe; 4771 struct i40e_hw *hw = &pf->hw; 4772 struct i40e_vsi *vsi; 4773 unsigned long q_map; 4774 struct i40e_vf *vf; 4775 int abs_vf_id; 4776 int ret = 0; 4777 int tmp; 4778 4779 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4780 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4781 return -EAGAIN; 4782 } 4783 4784 /* validate the request */ 4785 if (vf_id >= pf->num_alloc_vfs) { 4786 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4787 ret = -EINVAL; 4788 goto error_out; 4789 } 4790 4791 vf = &pf->vf[vf_id]; 4792 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4793 4794 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4795 pfe.severity = PF_EVENT_SEVERITY_INFO; 4796 4797 switch (link) { 4798 case IFLA_VF_LINK_STATE_AUTO: 4799 vf->link_forced = false; 4800 vf->is_disabled_from_host = false; 4801 /* reset needed to reinit VF resources */ 4802 i40e_vc_reset_vf(vf, true); 4803 i40e_set_vf_link_state(vf, &pfe, ls); 4804 break; 4805 case IFLA_VF_LINK_STATE_ENABLE: 4806 vf->link_forced = true; 4807 vf->link_up = true; 4808 vf->is_disabled_from_host = false; 4809 /* reset needed to reinit VF resources */ 4810 i40e_vc_reset_vf(vf, true); 4811 i40e_set_vf_link_state(vf, &pfe, ls); 4812 break; 4813 case IFLA_VF_LINK_STATE_DISABLE: 4814 vf->link_forced = true; 4815 vf->link_up = false; 4816 i40e_set_vf_link_state(vf, &pfe, ls); 4817 4818 vsi = pf->vsi[vf->lan_vsi_idx]; 4819 q_map = BIT(vsi->num_queue_pairs) - 1; 4820 4821 vf->is_disabled_from_host = true; 4822 4823 /* Try to stop both Tx&Rx rings even if one of the calls fails 4824 * to ensure we stop the rings even in case of errors. 4825 * If any of them returns with an error then the first 4826 * error that occurred will be returned. 4827 */ 4828 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false); 4829 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false); 4830 4831 ret = tmp ? tmp : ret; 4832 break; 4833 default: 4834 ret = -EINVAL; 4835 goto error_out; 4836 } 4837 /* Notify the VF of its new link state */ 4838 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4839 0, (u8 *)&pfe, sizeof(pfe), NULL); 4840 4841 error_out: 4842 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4843 return ret; 4844 } 4845 4846 /** 4847 * i40e_ndo_set_vf_spoofchk 4848 * @netdev: network interface device structure 4849 * @vf_id: VF identifier 4850 * @enable: flag to enable or disable feature 4851 * 4852 * Enable or disable VF spoof checking 4853 **/ 4854 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4855 { 4856 struct i40e_netdev_priv *np = netdev_priv(netdev); 4857 struct i40e_vsi *vsi = np->vsi; 4858 struct i40e_pf *pf = vsi->back; 4859 struct i40e_vsi_context ctxt; 4860 struct i40e_hw *hw = &pf->hw; 4861 struct i40e_vf *vf; 4862 int ret = 0; 4863 4864 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4865 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4866 return -EAGAIN; 4867 } 4868 4869 /* validate the request */ 4870 if (vf_id >= pf->num_alloc_vfs) { 4871 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4872 ret = -EINVAL; 4873 goto out; 4874 } 4875 4876 vf = &(pf->vf[vf_id]); 4877 if (!i40e_check_vf_init_timeout(vf)) { 4878 ret = -EAGAIN; 4879 goto out; 4880 } 4881 4882 if (enable == vf->spoofchk) 4883 goto out; 4884 4885 vf->spoofchk = enable; 4886 memset(&ctxt, 0, sizeof(ctxt)); 4887 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4888 ctxt.pf_num = pf->hw.pf_id; 4889 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4890 if (enable) 4891 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4892 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4893 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4894 if (ret) { 4895 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4896 ret); 4897 ret = -EIO; 4898 } 4899 out: 4900 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4901 return ret; 4902 } 4903 4904 /** 4905 * i40e_ndo_set_vf_trust 4906 * @netdev: network interface device structure of the pf 4907 * @vf_id: VF identifier 4908 * @setting: trust setting 4909 * 4910 * Enable or disable VF trust setting 4911 **/ 4912 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4913 { 4914 struct i40e_netdev_priv *np = netdev_priv(netdev); 4915 struct i40e_pf *pf = np->vsi->back; 4916 struct i40e_vf *vf; 4917 int ret = 0; 4918 4919 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4920 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4921 return -EAGAIN; 4922 } 4923 4924 /* validate the request */ 4925 if (vf_id >= pf->num_alloc_vfs) { 4926 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4927 ret = -EINVAL; 4928 goto out; 4929 } 4930 4931 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4932 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4933 ret = -EINVAL; 4934 goto out; 4935 } 4936 4937 vf = &pf->vf[vf_id]; 4938 4939 if (setting == vf->trusted) 4940 goto out; 4941 4942 vf->trusted = setting; 4943 4944 /* request PF to sync mac/vlan filters for the VF */ 4945 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4946 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4947 4948 i40e_vc_reset_vf(vf, true); 4949 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4950 vf_id, setting ? "" : "un"); 4951 4952 if (vf->adq_enabled) { 4953 if (!vf->trusted) { 4954 dev_info(&pf->pdev->dev, 4955 "VF %u no longer Trusted, deleting all cloud filters\n", 4956 vf_id); 4957 i40e_del_all_cloud_filters(vf); 4958 } 4959 } 4960 4961 out: 4962 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4963 return ret; 4964 } 4965 4966 /** 4967 * i40e_get_vf_stats - populate some stats for the VF 4968 * @netdev: the netdev of the PF 4969 * @vf_id: the host OS identifier (0-127) 4970 * @vf_stats: pointer to the OS memory to be initialized 4971 */ 4972 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4973 struct ifla_vf_stats *vf_stats) 4974 { 4975 struct i40e_netdev_priv *np = netdev_priv(netdev); 4976 struct i40e_pf *pf = np->vsi->back; 4977 struct i40e_eth_stats *stats; 4978 struct i40e_vsi *vsi; 4979 struct i40e_vf *vf; 4980 4981 /* validate the request */ 4982 if (i40e_validate_vf(pf, vf_id)) 4983 return -EINVAL; 4984 4985 vf = &pf->vf[vf_id]; 4986 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4987 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4988 return -EBUSY; 4989 } 4990 4991 vsi = pf->vsi[vf->lan_vsi_idx]; 4992 if (!vsi) 4993 return -EINVAL; 4994 4995 i40e_update_eth_stats(vsi); 4996 stats = &vsi->eth_stats; 4997 4998 memset(vf_stats, 0, sizeof(*vf_stats)); 4999 5000 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 5001 stats->rx_multicast; 5002 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 5003 stats->tx_multicast; 5004 vf_stats->rx_bytes = stats->rx_bytes; 5005 vf_stats->tx_bytes = stats->tx_bytes; 5006 vf_stats->broadcast = stats->rx_broadcast; 5007 vf_stats->multicast = stats->rx_multicast; 5008 vf_stats->rx_dropped = stats->rx_discards; 5009 vf_stats->tx_dropped = stats->tx_discards; 5010 5011 return 0; 5012 } 5013